[Solved] What does the cmap parameter do in plt.imshow() when displaying an image? — Ans: It changes how numbers map to colors in the image. | Matplotlib

Matplotlib - Image Display

What does the cmap parameter do in plt.imshow() when displaying an image?

AIt changes how numbers map to colors in the image.

BIt changes the image size.

CIt adds a title to the image.

DIt saves the image to a file.

Step-by-Step Solution

Solution:

Step 1: Understand the role of cmap in plt.imshow()
The cmap parameter controls the colormap, which maps numeric values to colors in the image.
Step 2: Identify what cmap affects visually
Changing cmap changes the colors shown, helping interpret data better.
Final Answer:
It changes how numbers map to colors in the image. -> Option A
Quick Check:
Colormap = color mapping [OK]

Quick Trick: Remember: cmap controls colors, not size or titles [OK]

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What does the cmap parameter do in plt.imshow() when displaying an image?