Edge Detection - Automatic/Adaptive Thresholding by scanning of image
2 次查看(过去 30 天)
显示 更早的评论
*Sir, i want to find out following points in my images:
1. convert the jpg to black/white or grayscale.
2. Make the size of all the figs. equal.
3. Take left hand bottom corner as origin.
4. scan left to right and bottom to top.
5. scan for intensities > threshold values [Note their position(coordinates) in an array]
6. After the entire fig is scanned, find the area with help of the(which i find the coordinates)coordinates.*
采纳的回答
Image Analyst
2014-2-7
Your post keeps getting smaller and smaller. If I wait long enough it may disappear entirely, which would be okay since it is (or was) essentially the same as your other question. But to answer this one
- grayImage = rgb2gray(jpgImage);
- Use imresize()
- Unneeded
- Unneeded
- binaryImage = grayImage > thresholdValue. This does the whole image in one shot - no need to do any scanning, starting from the corner or anywhere else. "Positions" are encoded into binaryImage.
- area = sum(binaryImage(:))
1 个评论
Image Analyst
2014-2-8
You're welcome. But I don't understand the grammar of what you say after the comma.
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Convert Image Type 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!