What happens to the size of individual pixels when the matrix size of a digital image increases?

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Multiple Choice

What happens to the size of individual pixels when the matrix size of a digital image increases?

Explanation:
Increasing the matrix size means more samples (pixels) are used to represent the same image area. If the overall image area on the display or print stays the same, those extra pixels must be packed into the same space, so each pixel covers a smaller area. In other words, pixel size decreases as resolution increases. This is why higher-resolution images look crisper when scaled to the same size. If you keep the space fixed and add more pixels, you don’t get bigger pixels; you get smaller ones.

Increasing the matrix size means more samples (pixels) are used to represent the same image area. If the overall image area on the display or print stays the same, those extra pixels must be packed into the same space, so each pixel covers a smaller area. In other words, pixel size decreases as resolution increases. This is why higher-resolution images look crisper when scaled to the same size. If you keep the space fixed and add more pixels, you don’t get bigger pixels; you get smaller ones.

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