Intensity (luminance) calculation

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Wisam S
Wisam S 2015-10-15
编辑： Wisam S 2015-10-21
How can I calculate the intensity level of the ith pixel (or the luminance of the ith pixel) of an 1024*1024 grey level image

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Image Analyst
Image Analyst 2015-10-15
Knowing the row and column, you can get its gray level:
grayLevel = grayscaleImage(row, column);
The total number of rows and columns does not enter into it - all you need to know is the location of the pixel.
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Wisam S
Wisam S 2015-10-19
thanks for your help sorry, I am a new here in this forum and I am not very good in Matlab
Image Analyst
Image Analyst 2015-10-19
OK, then the pixel value at row i, column j is img(i,j) since your image is named img instead of grayscaleImage.

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