I need to detect a selected area in a photo: Original photo: I used this code: import cv2 as cv import numpy as np img = cv.imread(cv.samples.findFile('./Pict
Does OpenCV support the comparison of two images, returning some value (maybe a percentage) that indicates how similar these images are? E.g. 100% would be retu
I am creating program that helps processing microstructure images. One of the function is detecting circles with the same radius. User draws one circle, my prog
I want to Finding a specific shape position in the Image. Firstly, I have a main image like below and I have multiple icons like below. I want to find the posit
I've been struggling with trying to apply a gradient map which is sourced from an image file to a grayscale image which includes alpha/transparency. The followi
I am working on image compression problem, i want to convert the images from 3 channel to 1 channle , i used tf.image.rgb_to_grayscale(img_data_array, name=None
I am using a library to do RTMP streaming from an USB/UVC camera in android. The library I am using is this one. This library works just fine for android USB ca
I have a CNN model, which is basically processing images and classifying them at the end. There are four class labels, which are UN, D1, D2 and D3. If you look
I want to have a polygon region of interest and would like to perform an object detection algorithm within this area. For example, the user gives some points an
I'm doing some feature detection/pattern matching based on the OpenCV example code shown at https://docs.opencv.org/3.4/d5/dde/tutorial_feature_description.html
I am doing tumor segmentation for my project and have used the SLIC function from scikit- image mark boundaries to create this grid. I am creating a feature vec
For a class I have to implement the sobel edge detector in java, and do I did. But something isnt right, and after 3 hours trying to figure it out I still haven
I have been working on Images for few months for my internship, and recently I have been wondering that is there a mathematical way of resizing the images. This
I am working on Image processing with deep learning and I came on to the topic Error level Analysis which gives/shows the difference in compression level(I'm tr
The code snippet in Python should convert the rgb image to black and white, but only a black image output. I do not know where the problem is (input and output
I am currently working on lines extraction from a binary image. I initially performed a few image processing steps including threshold segmentation and obtained
Hi guys greetings am trying to denoise many several noises with several filters for a research i have, i found a deconvolution wiener filter made by "mr.tranlea
I have a list of points let's say 5 points. I want to crop the area that this polygon is covering from the image. Here, red areas are the points and I want to c
I am new to OpenCV. I have a "simple" image of a stamp that I have already processed a bit, as you can see in the code below. Now I have the problem of cropping
I need to desaturate the background of this kind of images. I thought I can find the largest contour and desaturate everything around. So far I can find the lar