MATLAB: Error : while finding histogram for gray scale image (uint8)

histogramImage Processing Toolbox

Can anyone tell me how to rrecvtify this error?? I have
Undefined function or variable 'originalImage'.
Error in blobs (line 15) [pixelCount grayLevels] = imhist(originalImage);

Best Answer

Your image variable is not named originalImage. What is it named? Looks like you took some demo code of mine and modified it but forgot to change the name everywhere. Where does the result of your imread() function go to? Chances are that is what you need to send into imhist(). For example
grayImage = imread(fullFileName);
[pixelCount grayLevels] = imhist(grayImage);
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