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I want to obtain the pixel values for RGB from image.I did it in Matlab and Python but i obtained different values especially at the green value. I'll appreciate if you have an advice about this matter. Thanks Here is my code in python -
from PIL import Image
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import numpy as np
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im = Image.open("lena.jpg")
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imPixelVal = np.ones(np.size(im))
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imSize = np.size(im)
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for i in range (0,imSize[0]):
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for j in range (0,imSize[1]):
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ij = i , j
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p = im.getpixel(ij)
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imPixelVal[i,j] = (0.2989 * p[0]) + (0.5870 * p[1]) + (0.1140 * p[2])
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print p[0]
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print p[1]
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print p[2]
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Also this is the code in Matlab: -
Im=imread('lena.jpg');
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Img = (ones(size(Im,1),size(Im,2)));
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for i=1:size(Im,1)
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for j=1:size(Im,2)
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Img(i,j)=0.2989*Im(i,j,1)+0.5870*Im(i,j,2)+0.1140*Im(i,j,3);
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end
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end
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Im(1,1,1)
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Im(1,1,2)
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Im(1,1,3)
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