Top "Image-segmentation" questions

Segmentation is a basic operation in image processing: its purpose is to group similar pixels into coherent regions = segments.

Image Segmentation using Mean Shift explained

Could anyone please help me understand how Mean Shift segmentation actually works? Here is a 8x8 matrix that I just …

algorithm image image-processing image-segmentation
How to define the markers for Watershed in OpenCV?

I'm writing for Android with OpenCV. I'm segmenting an image similar to below using marker-controlled watershed, without the user manually …

opencv image-processing computer-vision image-segmentation watershed
Algorithm to detect corners of paper sheet in photo

What is the best way to detect the corners of an invoice/receipt/sheet-of-paper in a photo? This is to …

image-processing opencv edge-detection hough-transform image-segmentation
What is "semantic segmentation" compared to "segmentation" and "scene labeling"?

Is semantic segmentation just a Pleonasm or is there a difference between "semantic segmentation" and "segmentation"? Is there a difference …

image-processing computer-vision object-detection image-segmentation semantic-segmentation
How can I select the best set of parameters in the Canny edge detection algorithm implemented in OpenCV?

I am working with OpenCV on the Android platform. With the tremendous help from this community and techies, I am …

opencv image-processing edge-detection image-segmentation
How to calculate the mean IU score in image segmentation?

How to compute the mean IU (mean Intersection over Union) score as in this paper? Long, Jonathan, Evan Shelhamer, and …

computer-vision image-segmentation evaluation-strategy
How to calculate dice coefficient for measuring accuracy of image segmentation in python

I have an image of land cover and I segmented it using K-means clustering. Now I want to calculate the …

python-2.7 scikit-learn gis image-segmentation
Cutting one image into multiple images using the Python Image Library

I need to cut this image into three parts using PIL and pick the middle part. How do I do …

python image-manipulation python-imaging-library image-segmentation
OpenCV - Intersection between two binary images

Let's say I have two binary images of the same size. How do I find the intersection between the two …

opencv image-segmentation
OpenCV image segmentation in C++ using Watershed

Hi i'm currently writing a basic C++ application using the OpenCV library to segment the subject of the image from …

c++ opencv mask image-segmentation watershed