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1 answer
200 views

Tried to remove background from bill photo using OpenCvSharp GrabCut method: static Mat Grabcut(Mat imageMat) { Mat result = new(imageMat.Size(),MatType.CV_8UC1); OpenCvSharp.Rect rect = ...
0 votes
0 answers
99 views

I am new to OpenCV with linux. I am currently working on tube rack's bounding detection. But as you can see, one of rack's bounding is blurred by shadow. Despite having used histogram equalization to ...
0 votes
0 answers
29 views

brightField CellI'm working on cell segmentation using Bright Field (BF) microscopy images, but I'm struggling due to uneven illumination and weak cell edges. To summarize, I’m stuck between two ...
0 votes
3 answers
220 views

This is an example image of what i am trying to analyze: The yellow line is the line tool in imageJ. I would take a "plot profile" which would give me the value of the pixels over the line. ...
0 votes
2 answers
206 views

In thousands of grayscale satellite images I want to find the center coordinates and radius of the Earth’s edge. Hough Circle Transform in OpenCV doesn't work because of clouds and noise in the image. ...
1 vote
0 answers
42 views

My topic is to determine sizes of rocks / stones with image processing and I need help with edge or contour detection (image segmentation) for these rock pictures. After contour detection, I will ...
1 vote
1 answer
249 views

I am working on an image processing task using opencv python where I need to segment individual rice grains from an image. The challenge is that many grains are overlapping with each other. Here is an ...
0 votes
1 answer
76 views

sample input image1 I would like to use computer vision to detect the edge like this image2 I wonder if there were some image process algorithms that could help me? Note that some image could be ...
0 votes
0 answers
126 views

I am working on a project that renders the edge points of an image on an HTML canvas using JavaScript. Despite several optimizations, the performance is not ideal, especially when dealing with larger ...
1 vote
0 answers
49 views

I'm using fabric JS free drawing mode to generate a bunch of hand-drawn SVGs. I then composite these onto a canvas. I convert them to a bitmap Image for rendering so that I can easily union all of the ...
-1 votes
2 answers
141 views

I have a very noisy greyscale image where the noise level modulates along one axis. Within this image, there may be a very faint line of some unknown width. I want to be able to identify when this ...
0 votes
0 answers
134 views

Here is a generalized example of the house photo's I am referring to. I’m using OpenCV to detect and outline the roof of a house in a set of images by drawing contours around the roof edges. The issue ...
2 votes
1 answer
2k views

I'm having problems trying to detect edges in images corresponding to holes in a glass sample. Images look like this: images Single sample: Each image contains part of a hole that was cut into a ...
2 votes
1 answer
221 views

Hi I'm quite new in OpenCV, I am currently trying to detect horizontal lines in an image using HoughLinesP function in opencv, in order to calculate the ratio between x and y. The line detection ...
0 votes
0 answers
217 views

I want to create a die-cut sticker design. In my app, user should be able to upload any png file with transparent background. App should create double border around the image, to look like a die-cut ...

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