HSV Help - Imshow two thresholds
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Hey all,
I'm trying to display the following image in HSV, and setting the red and green thresholds. How can I do it so the user specifies with an input? Cheers
redlevel = input('Please insert a value between 0 and 1 for Red.\n','s');
red=str2double(redlevel);
objectofintrest = (objectofintrest(:,:,1)<(red));
greenlevel = input('Please insert a value between 0 and 1 for Green.\n','s');
green=str2double(greenlevel);
objectofintrest = ((objectofintrest(:,:,2))<(green));
% redgreen= [redlevel & grelevel];
imshow(objectofintrest, red, green);
5 个评论
Image Analyst
2013-4-18
Did that work? By the way, it appears to be RGB color space, not HSV color space. See my interactive thresholding app: http://www.mathworks.com/matlabcentral/fileexchange/29372-thresholding-an-image
Ian
2013-4-18
Image Analyst
2013-4-18
编辑:Image Analyst
2013-4-18
I don't know what you are trying to do. Why are you using the word red when you're thresholding the hue channel and the red hues are less than about 0.1 and more than about 0.9?
Ian
2013-4-18
Image Analyst
2013-4-18
编辑:Image Analyst
2013-4-18
Is objectofintrest an RGB image or an HSV image? What is the range of it? Between 0 and 255 or between 0 and 1?
Maybe you'd like my thresholding app: http://www.mathworks.com/matlabcentral/fileexchange/29372-thresholding-an-image
回答(1 个)
Image Analyst
2013-4-18
编辑:Image Analyst
2013-4-18
0 个投票
Check out my color segmentation tutorials. There is one that works in HSV color space. http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862
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