24 lines
970 B
Markdown
24 lines
970 B
Markdown
# Selecting objects
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## Topic
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Selecting objects in a color image
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## Aim
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Implement an image binarization algorithm with a choice of a threshold by
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distance in the RGB color space, evaluate the operation of the algorithm for
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selecting areas of objects of interest in the image.
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## Instructions:
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1. Upload an image of vegetables (vegetables.jpg ), select a small area
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belonging to the red pepper image on it and find for this area the average
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values for each RGB color channel $R_0$, $G_0$, $B_0$;
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2. Calculate the distance in the color space for each pixel of the image
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RGB to the found average value $\sqrt{(R-R_0)^2 + (G-G_0)^2 + (B-B_0)^2}$
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3. Convert the image to binary, while selecting the threshold for the distance d
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so that red vegetables are optimally highlighted in the image
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4. Display the result as a color image: pixels belonging
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to objects of interest (i.e. red vegetables) should retain the original color, and
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all other pixels should be painted black |