Think my image is 'im'. If I get the colored image pixel information as im(4,29) using MATLAB : it says (uint8) 142, what information it displays, I meant that the mean value of 3 channels of the co-ordination or something else ?
MATLAB: Colored image pixel information …..
digital image processingimage processingImage Processing Toolbox
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You can simply do
grayValue = yourImage(row, column);or use an interactive tool like imtool() or impixel() or impixelinfo().
See Steve's blog:
Or else just do this:
imageHeight = 300;% Create an image of all 1's.
blank = ones(imageHeight, 'uint8');% Assign (or get) the two RGB values into a vector.
rgb1 = [0, 255, 255];rgb2 = [255, 146, 0];% Create two images. One image for each color.
color1 = cat(3, rgb1(1) * blank, rgb1(2) * blank, rgb1(3) * blank);color2 = cat(3, rgb2(1) * blank, rgb2(2) * blank, rgb2(3) * blank);% Stitch them together into one image.
twoPixels = [color1, color2];% Display that image.
imshow(twoPixels);
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