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Using the examples presented for displaying an image in Matlab toget.pdf
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Using the examples presented for displaying an image in Matlab together with those for accessing pixel locations, investigate adding and subtracting a scalar value from an individual location, i.e. Ii; j Ii; j 25 orIi; j Ii; j(cid:4)25. Start by using the grey-scale cell.tif example image and pixel location 100; 20.What is the effect on the grey(cid:2)scale colour of adding and subtracting? Expand your technique to RGB colour images by adding and subtracting to all three of the colour channels in a suitable example image. Also try just adding to one of the individual colour channels whilst leaving the others unchanged. What is the effect on the pixel colour of each of these operations?.
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Using the examples presented for displaying an image in Matlab toget.pdf
- Using the examples presented for displaying an image in Matlab together with those for accessing pixel locations, investigate adding and subtracting a scalar value from an individual location, i.e. Ii; j Ii; j 25 orIi; j Ii; j25. Start by using the grey-scale cell.tif example image and pixel location 100; 20.What is the effect on the greyscale colour of adding and subtracting? Expand your technique to RGB colour images by adding and subtracting to all three of the colour channels in a suitable example image. Also try just adding to one of the individual colour channels whilst leaving the others unchanged. What is the effect on the pixel colour of each of these operations?
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