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Python OpenCV2 (cv2) wrapper to get image size? - Stack Overflo

img_array = [] for filename in glob.glob(‘C:/bill*.png’): img = cv2.imread(filename) height, width, layers = img.shape size = (width, height) img_array.append(img)Almost all the operations in this section is mainly related to Numpy rather than OpenCV. A good knowledge of Numpy is required to write better optimized code with OpenCV.

Video: OpenCV: Basic Operations on Image

Get image size (width, height) with Python, OpenCV note

In OpenCV, the image size (width, height) can be obtained as a tuple with the attribute shape of ndarray and the attribute size of PIL.Image in Pillow (PIL) width = img.shape[1] # keep original width height = 440 dim = (width, height) # resize image resized_h = cv2.resize(img, dim, interpolation = cv2.INTER_AREA) print('Resized Dimensions.. img: Input PIL Image instance. data_format: Image data format, can be either channels_first or Image data preprocessing. image_dataset_from_directory function. load_img function Shape of image is accessed by img.shape. It returns a tuple of number of rows, columns and channels (if image is color):

tensorflowNet.setInput(cv2.dnn.blobFromImage(img, size=(300, 300), swapRB=True, crop=False)). # Runs a forward pass to compute the net output. networkOutput = tensorflowNet.forward() print('Value '+str(value)) _, thresh = cv2.threshold(imgGray,value,255,cv2.THRESH_BINARY) dilated = cv2.dilate(thresh, None, iterations=3) contours, _ = cv2.findContours(dilated,cv2.RETR_TREE,cv2.CHAIN_APPROX_NONE) print('contours found' + str(len(contours))) for contour in contours: approx = cv2.approxPolyDP(contour,0.01*cv2.arcLength(contour,True),True) cv2.drawContours(img,[approx],0,(255,255,255),5) x = approx.ravel()[0] y = approx.ravel()[1] print("Approx value"+ str(len(approx))) if len(approx) == 3: cv2.putText(img, "Triangle",(x,y),cv2.FONT_HERSHEY_COMPLEX,0.5,(255,255,255)) elif len(approx) == 4: x,y,w,h = cv2.boundingRect(approx) aspectRatio = float(w)/h print("AspectRatio "+ str(aspectRatio)) if aspectRatio >= 0.95 and aspectRatio <=1.05: cv2.putText(img, "Squar",(x,y),cv2.FONT_HERSHEY_COMPLEX,0.5,(255,255,255)) else: cv2.putText(img, "Rectangle",(x,y),cv2.FONT_HERSHEY_COMPLEX,0.5,(255,255,255)) elif len(approx) == 5: cv2.putText(img, "Pentagon",(x,y),cv2.FONT_HERSHEY_COMPLEX,0.5,(255,255,255)) elif len(approx) == 10: cv2.putText(img, "Star",(x,y),cv2.FONT_HERSHEY_COMPLEX,0.5,(255,255,255)) else: cv2.putText(img, "Circle",(x,y),cv2.FONT_HERSHEY_COMPLEX,0.5,(255,255,255)) cv2.imshow('Shape image',img) cv2.createTrackbar('Val','Shape image',0,255,returnTrackBarValue)

The v-img component is packed with features to support rich media. v-img component is used to display a responsive image with lazy-load and placeholder For all basic shapes size of cache canvas will be automatically detected. If you need to cache your custom Konva.Shape instance you have to pass shape's bounding box properties Free tool to enlarge your photo or image online. Upload and select from the 4 different enlargements we generate h, w = im.shape[0], im.shape[1] print('width: ', w) print('height:', h) # width: 400 # height: 225 source: opencv_size.py If you want to get a (width, height) tuple, you can use slice. The image can be either color or grayscale if it is written as follows.h, w = im_gray.shape print('width: ', w) print('height:', h) # width: 400 # height: 225 print('width: ', im_gray.shape[1]) print('height:', im_gray.shape[0]) # width: 400 # height: 225 source: opencv_size.py If you want to assign width and height to variables, you can apply the following to either color or grayscale images:

h, w, c = im.shape print('width: ', w) print('height: ', h) print('channel:', c) # width: 400 # height: 225 # channel: 3 source: opencv_size.py When unpacking a tuple, values that are not used after that may be assigned to _ by convention. An example where the number of colors (number of channels) is not used is as follows. I personally found this confusing, because often times you'll run across a tutorial on masking that uses a masking image that a white vector-looking shape on black, so it is basically doing the same thing a clip img.dtype is very important while debugging because a large number of errors in OpenCV-Python code is caused by invalid datatype. Generate an image with random shapes, labeled with bounding boxes. skimage.draw.rectangle(start[, end, extent, ]) Generate coordinates of pixels within a rectangle

Resize Image using Opencv Python - Manivannan Murugavel - Mediu

  1. As we can see from the shape of the image, it has been resized to (64,64,3). If we take the mean of each color channels(RGB), we will get a grayscale image. <Python code start>. mean_img = np.mean..
  2. Hi Guys..!! Well it is late but still i thought i would share the code i used for this purpose and without the sorting algo. Although i don’t well know about its efficiency as i am still new to python so any corrections are welcomed:
  3. Make photo in the form of ▲ ♥ different geometric shapes online. To make a picture of a certain geometric shape, you need to specify it on your computer or phone, enter the number of the shape..

Hi, Peter Yes, only images with the size equivalent to your last image will be included in the video. This is because of the write() method (Line 16). This method only includes the images that have the same size as has been specified when opening the video writer (the size in Line 13). That’s the reason you are facing the problem. To solve this you must resize all the images to some fixed size. For that, you can use OpenCV’s cv2.resize() function after reading the image (Line 7).Syntax:cv2.resize(image,(width,height))Example:img = cv2.resize(oriimg,(360,480))Option 2(Factor with float value):

.img-circle { border-radius: 50%; } Now any image with the img-circle class will be displayed as a Anything else will still be rounded, but you'll end up with an elliptic shape which may or may not be.. Img_shape = (img_size, img_size, 3) #. Create the base model from the pre-trained model MobileNet V2 base_model = tf.keras.applications.MobileNetV2(input_shape=IMG_SHAP 3. if img.shape[-1] != conv_filter.shape[-1]: 4. print(Error: Number of channels in both image and filter must match.) 8. sys.exit() 9. if conv_filter.shape[1]%2==0: # Check if filter diemnsions are odd >>> b = img[:,:,0] Suppose, you want to make all the red pixels to zero, you need not split like this and put it equal to zero. You can simply use Numpy indexing which is faster.

img = cv2.imread('sofsk.png',0) size = np.size(img) skel = np.zeros(img.shape,np.uint8). ret,img = cv2.threshold(img,127,255,0) element = cv2.getStructuringElement(cv2.MORPH_CROSS,(3,3).. img = img.eval(session=sess) # convert to numpy array. img = np.expand_dims(img, 0) # make 'batch' of 1. if Y.shape != predictions.shape: print(Predictions must equal Y in length!\n) Documentation and examples for opting images (via <b-img> component) into responsive behavior (so they Image src resolving. The src prop (and blank-src prop of <b-img-lazy>), out of the box, works..

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Basic Operations on Images — OpenCV-Python Tutorials

  1. plt.imshow(lum_img). Out: <matplotlib.image.AxesImage object at 0x7fdbbc4804f0>. To create a histogram of our image data, we use the hist() function. plt.hist(lum_img.ravel(), bins=256, range=(0.0..
  2. Above mentioned method is normally used for selecting a region of array, say first 5 rows and last 3 columns like that. For individual pixel access, Numpy array methods, array.item() and array.itemset() is considered to be better. But it always returns a scalar. So if you want to access all B,G,R values, you need to call array.item() separately for all.
  3. In this video, you'll learn how to create shapes in Photoshop. Table of Contents 0:10 - Create New Photoshop File 0:18 - The Shape Tool 0:45 - Make a..
  4. Hi, Need an help on the same. It’s not working for all the JPEG images, please let me know some way to connect with you.
  5. You can read image into a numpy array using opencv library. The array contains pixel level data. And as per the requirement, you may modify the data of the image at a pixel level by updating the array values.
  6. Why create a list of image frames and then write them to the video generator later? These two can both be done at the same time. Read the image and then write it instantly. Thus, the memory required for the image array can be saved.
  7. I want to input my own data: MYMAP = np.zeros((img_rows,img_cols), dtype=int). MYMAP = MYMAP.reshape(1,28,28,1). but it got faile
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Python Image Processing Tutorial (Using OpenCV) - Like Geek

Simple shape detection Opencv with Python · GitHu

files.sort() will sort alpha numerically (1 10 11 2 20 21). If you want ‘natural’ sorting like 1 2 10 11 etc.. Follow this link https://stackoverflow.com/questions/4623446/how-do-you-sort-files-numerically Training: Use the crop tools in PowerPoint to trim and remove unwanted portions of pictures, or to crop a picture to fit a shape You can take make it into a Numpy array of type np.float32 and pass it into cv2.warpAffine() function. See below example for a shift of (100,50): If reshape is true, the output shape is adapted so that the input array is contained completely in the output

Python OpenCV Read Image - cv2 imread(

  1. Resize a JPG, BMP, GIF or PNG image online. Reduce image size to share it with friends or upload it to your social networks or websites
  2. oriimg.shapeIt returns a tuple of height,width and channel(if image RGB color)ex:(height,width,channel) as (360,480,3)
  3. out = cv2.VideoWriter (‘project.avi’, cv2.VideoWriter_fourcc (*’DIVX’), 15, size)
  4. The shape() function is used to draw the shape to the display window. Processing can currently load and display SVG (Scalable Vector Graphics) and OBJ shapes. OBJ files can only be opened using..
  5. readimport cv2filename = 'your_image.jpg'W = 1000.oriimg = cv2.imread(filename,cv2.CV_LOAD_IMAGE_COLOR)height, width, depth = oriimg.shapeimgScale = W/widthnewX,newY = oriimg.shape[1]*imgScale, oriimg.shape[0]*imgScalenewimg = cv2.resize(oriimg,(int(newX),int(newY)))cv2.imshow("Show by CV2",newimg)cv2.waitKey(0)cv2.imwrite("resizeimg.jpg",newimg)Find the Image shape:
  6. The CSS property border-radius adds rounded corners on images. You can round all of the image's corners or just select corners, vary the radius on different corners or display an image in the shape of..

p5.js a JS client-side library for creating graphic and interactive experiences, based on the core principles of Processing In this example, we will read image as a grey scale image. Input can be color image or grey scale image. But, if flag argument is cv2.IMREAD_GRAYSCALE, the image is read as grey scale image. oriimg.shape. It returns a tuple of height,width and channel(if image RGB color) ex:(height,width,channel) as (360,480,3). Resize the Image: Option # accessing RED value >>> img.item(10,10,2) 59 # modifying RED value >>> img.itemset((10,10,2),100) >>> img.item(10,10,2) 100 Accessing Image Properties¶ Image properties include number of rows, columns and channels, type of image data, number of pixels etc. self.img_shape = (self.img_rows, self.img_cols, self.channels). The generator takes noise as input and generated imgs. z = Input(shape=(10

OpenCV: Geometric Transformations of Image

Traceback (most recent call last): File “video-tool-c.py”, line 14, in out = cv2.VideoWriter(‘film_test.api’,cv2.VideoWriter_fourcc(*’DIVX’), 16, size) NameError: name ‘size’ is not definedI get the video but the frames are order randomly, how can I arrange them in a sequential order? thanks for the post The Shapes demo shows how to create hotspots within other hotspots. It also uses includeKeys like the Frog demo to activate areas from other areas, but slightly differently: the target area isn't itself a hotspot I really need your help. I’m trying to use this code in Jupyter Notebook to make a video with 7 images whi are in png. Their names are : 0.png 1.png 2.png … 6.png

imread() decodes the image into a matrix with the color channels stored in the order of Blue, Green, Red and A (Transparency) respectively. shape = sp(img, d) #. Draw the face landmarks on the screen so we can see what face is currently win.add_overlay(shape) #. Compute the 128D vector that describes the face in img identified by #

Video: Creating Video from Images using OpenCV-Python TheAILearne

In affine transformation, all parallel lines in the original image will still be parallel in the output image. To find the transformation matrix, we need three points from input image and their corresponding locations in output image. Then cv2.getAffineTransform will create a 2x3 matrix which is to be passed to cv2.warpAffine. >>> face_from_raw.shape = (768, 1024, 3). Need to know the shape and dtype of the image (how to separate data bytes). For large data, use np.memmap for memory mappin Different interpolation methods are used to resize the image. It is same syntax but add one argument with key name interpolation.Python has a library that handles images such as OpenCV and Pillow (PIL). Here, the method of acquiring the image size (width, height) will be described.Numpy is a optimized library for fast array calculations. So simply accessing each and every pixel values and modifying it will be very slow and it is discouraged.

import cv2 im = cv2.imread('data/src/lena.jpg') print(type(im)) # <class 'numpy.ndarray'> print(im.shape) print(type(im.shape)) # (225, 400, 3) # <class 'tuple'> source: opencv_size.py When assigning each value to a variable, unpack the tuple as follows. Sep 15, 2017 · height, width, channels = img.shape. if you don't want the number of channels (useful to determine if the Calculate the width and hight of an image. width, height = img.size #. calculat ethe size in bytes.. img.shape[0:2]. , you will have the following output: Okay, now we have our image matrix and we want to get height, width = img.shape[0:2]. Now get the starting and ending index of the row and column If you want to create a border around the image, something like a photo frame, you can use cv2.copyMakeBorder() function. But it has more applications for convolution operation, zero padding etc. This function takes following arguments: print(img.shape) print(img.size) print(img.dtype). cv2.imshow('image',img) cv2.waitKey(0) cv2.destroyAllWindows(). This will work with my image, but may not for your image, depending on the..

Basic Image Manipulations in Python and OpenCV - PyImageSearc

First you need to install opencv. For that you can use pip command as follows: “pip install opencv-python” or you can download it’s whl file from here and then install using pip. “pip install whl_file_name” For more details please follow this blog Here the method to explain how to add a link on an imagein html Follow the steps below.... 1.insert your image in the HTML <img src=image.gif style='max-width:90%' alt=alt text /> 2.Front of the image add your starting anchor..

Python Tutorial - Basic Image Operations pixel access - 202

  1. print(im.shape[1::-1]) # (400, 225) source: opencv_size.py When setting the size to cv2.resize() etc., it needs to be (width, height).
  2. ROI is again obtained using Numpy indexing. Here I am selecting the ball and copying it to another region in the image:
  3. e the format of the image. But decides the extension based on the format present in the file data.
  4. >>> import cv2 >>> import numpy as np >>> img = cv2.imread('messi5.jpg') You can access a pixel value by its row and column coordinates. For BGR image, it returns an array of Blue, Green, Red values. For grayscale image, just corresponding intensity is returned.

If the height is fixed and the width proportionally variable, it's pretty much the same thing, you just need to switch things around a bit: baseheight = 560 img = Image.open('fullsized_image.jpg') hpercent.. bbox (numpy.ndarray) - Numpy.ndarray with shape (N, 4+) where N is the number of bounding boxes. img (mxnet.nd.NDArray) - Input image with HWC format Preferable interpolation methods are cv.INTER_AREA for shrinking and cv.INTER_CUBIC(slow) & cv.INTER_LINEAR for zooming. By default, interpolation method used is cv.INTER_LINEAR for all resizing purposes. You can resize an input image either of following methods:print(im_gray.shape[::-1]) print(im_gray.shape[1::-1]) # (400, 225) # (400, 225) source: opencv_size.py Pillow (PIL): Get image size (width, height) with size, width, height PIL.Image object obtained by reading an image with Pillow (PIL) has attributes size, width, and height.To read an image in Python using OpenCV, use cv2.imread() function. imread() returns a 2D or 3D matrix based on the number of color channels present in the image. For a binary or grey scale image, 2D array is sufficient. But for a colored image, you need 3D array.

Getting started with OpenCV: Installation and Basic Image Processin

It can be useful to add shapes to a layout image, for highlighting an object, drawing bounding boxes as part of a machine learning training set, or identifying seeds for a segmentation algorithm from PIL import Image im = Image.open('data/src/lena.jpg') print(im.size) print(type(im.size)) # (400, 225) # <class 'tuple'> w, h = im.size print('width: ', w) print('height:', h) # width: 400 # height: 225 source: pillow_size.py The width and height can also be acquired with the attributes width and height. print(image.shape). You will see (357, 500, 3) displayed for this image. The first number refers to the height of the image (think of it as the y coordinates), the second number refers to the width.. Could you please tell me what are these two lines of code doing: height, width, layers = img.shape size = (width, height)

.. def cv_size(img): return tuple(img.shape[1::-1]). If you're on a terminal / ipython, you can also express it with a lambd Hi Lisa… This may be because of the for loop not executing. Try checking the path or printing the size inside the for loop. Hope this helps The <img> tag is used to insert images in the HTML documents. It is an empty element and contains attributes only. The syntax of the <img> tag can be given wit

Python Programming Tutorial

  1. \[\begin{bmatrix} \alpha & \beta & (1- \alpha ) \cdot center.x - \beta \cdot center.y \\ - \beta & \alpha & \beta \cdot center.x + (1- \alpha ) \cdot center.y \end{bmatrix}\]
  2. Looking at the shape of the matrix, we may think that our image is 388 pixels wide and 647 pixels I believe numpy.shape returns you number of rows and then number of columns and not the other way..
  3. import cv2 #read image img = cv2.imread('D:/image-1.png') #print its shape print('Image Dimensions :', img.shape). img.shape returns tuple representing (height, width, number_of_channels)

Image Stitching Using OpenCV - Towards Data Scienc

for i in range(len(img_array)): out.write(img_array[i]) out.release() ””””””””””””””””””””””””””’ copy paste this code to run in your own oath of imagesHi, Peter Thanks for reading the post. To make the video longer you need to adjust the frame per second (fps) argument in the cv2.Videowriter() function (Line 13 in the above code). Change the value 15 to 1 or any other lower number (0.5 etc) according to your problem. Hope this helps.

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Image class, variants and internal data augmentation pipelin

cv2.split() is a costly operation (in terms of time), so only use it if necessary. Numpy indexing is much more efficient and should be used if possible.im_gray = cv2.imread('data/src/lena.jpg', cv2.IMREAD_GRAYSCALE) print(im_gray.shape) print(type(im_gray.shape)) # (225, 400) # <class 'tuple'> source: opencv_size.py Basically the same as for color images. >>> img.shape (128, 96, 24, 2). It also records the data type of the data as stored on disk. In this case the data on disk are 16 bit signed integer import cv2 #read image img = cv2.imread('D:/image-1.png') #print its shape print('Image Dimensions :', img.shape) Output

In OpenCV, the image size (width, height) can be obtained as a tuple with the attribute shape of ndarray and the attribute size of PIL.Image in Pillow (PIL). Note that the order of width and height is different. <img src=https://picsum.photos/200/300?random=1> <img src=https://picsum.photos/200/300?random=2>. If you need a file ending, you can add .jpg to the..

print(i, sample['image'].shape, sample['landmarks'].shape). ax = plt.subplot(1, 4, i + 1) img = transform.resize(image, (new_h, new_w)) #. h and w are swapped for landmarks because for image In this tutorial, we shall learn in detail how to read an image using OpenCV, by considering some of the regular scenarios.Second, these two code lines are simply used for setting the size of the output video. If you already know the size of your image files, you can skip these two lines and manually pass the size (e.g (1200,720)) in the cv2.Videowriter() method (Line 13). Again this code assumes all the image files are of the same size. Copy link Quote reply Prem-6 commented Feb 25, 2020 sir please send me cv file Note that when the mode is 'outline or outline, the shape may draw outside of its bounding box and thus parts of the image may disappear when it is cropped

IMG_SHAPE

import cv2 img = cv2.imread('D:/image-1.png', cv2.IMREAD_GRAYSCALE) print('Image Dimensions :', img.shape) OutputIn the case of a color image, it is a 3D ndarray of row (height) x column (width) x color (3). shape is a tuple of (row (height), column (width), color (3)).

If image is grayscale, tuple returned contains only number of rows and columns. So it is a good method to check if loaded image is grayscale or color image. model.add(Flatten(input_shape=img_shape)). 3-Dimensional GANs. [Learning a Probabilistic Latent Space of Object Shapes via 3D Generative-Adversarial Modeling] [Paper] [Web] [Code](2016 NIPS) Shape of image is accessed by img.shape. img.dtype is very important while debugging because a large number of errors in OpenCV-Python code is caused by invalid datatype print(cat_img.shape) # (800, 1200, 3) <. cat_img = plt.imread('Figures/cat.jpeg') #. Turn 3D array into 2D by selecting just one of the three dimensions grayscale_cat = cat_img[:, :, 0]

2.6. Image manipulation and processing using Numpy and Scipy..

When an image file is read by OpenCV, it is treated as NumPy array ndarray. The size (width, height) of the image can be acquired from the attribute shape indicating the shape of ndarray.Hi, This means that the image is not loaded. Try checking if the image path you gave is correct or not. importcv2image=cv2.imread(D:/shape.bmp)print(image.shape[0])print(image.shape[1])print(image.shape[2])结果3002003其中shape.bmp是一张水平200像素,垂直300像素的彩色图python IMG_SHAPE. Loading Search Results. Name. IMG_SHAPE. Purpose. Returns the shape of a 2-D or 3-D image array. Category. Calling Sequence. img_shape, img

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Syntax of cv2.imread()

<img src=/wp-content/uploads/shapes.png usemap=shapes-map-rect> <map name If the shape attribute is set to circle , the coordinates define the center of the circle and the length of its radius height = int(img.shape[0] * scale_percent / 100). dim = (width, height). resized = cv2.resize(img, dim, interpolation = cv2.INTER_AREA). image.shape outputs the height, width, and channels OpenCV provides two transformation functions, cv2.warpAffine and cv2.warpPerspective, with which you can have all kinds of transformations. cv2.warpAffine takes a 2x3 transformation matrix while cv2.warpPerspective takes a 3x3 transformation matrix as input.

Example 1: OpenCV cv2 Read Color Image

Image Dimensions : (400, 640) Height of the image is 400 pixels, width is 640. Each element in the array represents grey scale value at the respective pixel. def PreprocessImage(path, show_img=False): # load image img = io.imread(path) print(Original Image Shape: , img.shape) # we crop image from center short_egde = min(img.shape[:2]) yy = int.. for x in range (0,6): img = cv2.imread(‘C:/Users/test/{0}.png’.format(x)) height, width, layers = img.shape size = (width, height) img_array.append (img) imag_tile(img, n, m). creates a tiled image by appending an image img m times in horizontal direction. After this we append the strip image consisting of m img images n times in vertical direction

Example 2: OpenCV cv2 – Read Image as Grey Scale

The image compress feature of Img2Go is available for image files only. This means that it should be used to reduce image size only. The following formats are the best supported ones >>> ball = img[280:340, 330:390] >>> img[273:333, 100:160] = ball Check the results below: h,w = img.shape[:2] . Performing camera calibration by passing the value of known 3D points (objpoints) and corresponding pixel coordinates of the detected corners (imgpoints)

Example 3: OpenCV cv2 – Read Image with Transparency Channel

The img src stands for image source, which is used to specify the source of an image in the HTML Where should I use Absolute path in img src? You should use this option when using images from.. Resize an image if img.shape[1] > 600: img = imutils.resize(img, width=600) clone = img.copy() #. Convert to grayscale gray = cv2.cvtColor(clone, cv2.COLOR_BGR2GRAY) #

imread() and Color Channels

I haven’t been able to fix it. Does someone have an idea what could be wrong? My code looks like this:import cv2 img = cv2.imread('D:/image-1.png', cv2.IMREAD_UNCHANGED) print('Image Dimensions :', img.shape) Output sp = dlib.shape_predictor('shape_predictor_68_face_landmarks.dat'). dets = detector(img, 1). for k, d in enumerate(dets With Shape we can choose the shape of the cut, the options are Rectangle or Circle. Size of both the rectangle and circle can be modified through Width and Height. In the case of the circle it suffices to..

imread() and File Extensions

Scaling is just resizing of the image. OpenCV comes with a function cv2.resize() for this purpose. The size of the image can be specified manually, or you can specify the scaling factor. Different interpolation methods are used. Preferable interpolation methods are cv2.INTER_AREA for shrinking and cv2.INTER_CUBIC (slow) & cv2.INTER_LINEAR for zooming. By default, interpolation method used is cv2.INTER_LINEAR for all resizing purposes. You can resize an input image either of following methods: For grayscale (monochrome) images, it is a 2D ndarray of rows (height) x columns (width). shape is a tuple of (row (height), column (width)). Some image shapes realized with overflow hidden and tranform-rotate property.... If you have other ways to realize advanced shapes, use the comment form ;)</p> < The B,G,R channels of an image can be split into their individual planes when needed. Then, the individual channels can be merged back together to form a BGR image again. This can be performed by:

Multiple shapes to use as separators for sections or as background images. Blur shapes that can be used as background images for elements. Lorem ipsum dolor sit amet, consectetur adipisicing elit Image Dimensions : (400, 640, 3) img.shape returns tuple representing (height, width, number_of_channels). Height of the image is 400 pixels, width is 640 and there are three color channels in the image. For cv2.IMREAD_COLOR, transparency channel is ignored even if present.import cv2 import numpy as np from matplotlib import pyplot as plt BLUE = [255,0,0] img1 = cv2.imread('opencv_logo.png') replicate = cv2.copyMakeBorder(img1,10,10,10,10,cv2.BORDER_REPLICATE) reflect = cv2.copyMakeBorder(img1,10,10,10,10,cv2.BORDER_REFLECT) reflect101 = cv2.copyMakeBorder(img1,10,10,10,10,cv2.BORDER_REFLECT_101) wrap = cv2.copyMakeBorder(img1,10,10,10,10,cv2.BORDER_WRAP) constant= cv2.copyMakeBorder(img1,10,10,10,10,cv2.BORDER_CONSTANT,value=BLUE) plt.subplot(231),plt.imshow(img1,'gray'),plt.title('ORIGINAL') plt.subplot(232),plt.imshow(replicate,'gray'),plt.title('REPLICATE') plt.subplot(233),plt.imshow(reflect,'gray'),plt.title('REFLECT') plt.subplot(234),plt.imshow(reflect101,'gray'),plt.title('REFLECT_101') plt.subplot(235),plt.imshow(wrap,'gray'),plt.title('WRAP') plt.subplot(236),plt.imshow(constant,'gray'),plt.title('CONSTANT') plt.show() See the result below. (Image is displayed with matplotlib. So RED and BLUE planes will be interchanged):..img1 = cv2.cvtColor(img_,cv2.COLOR_BGR2GRAY)img = cv2.imread('left.JPG') img2 find the keypoints and descriptors with SIFT kp1, des1 = sift.detectAndCompute(img1,None) kp2, des2..

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