[Solved] Why does imshow sometimes display images upside down, and how can you fix it? — Ans: Because image origin defaults to upper left; fix by setting origin='lower' | Matplotlib

Matplotlib - Image Display

Why does imshow sometimes display images upside down, and how can you fix it?

ABecause matplotlib does not support image display; use another library

BBecause image origin defaults to upper left; fix by setting origin='lower'

CBecause the array shape is reversed; fix by transposing the array

DBecause the image data is corrupted; fix by reloading the image

Step-by-Step Solution

Solution:

Step 1: Understand default origin in imshow
By default, imshow places the [0,0] pixel at the upper left, which can flip images vertically.
Step 2: Fix by changing origin parameter
Setting origin='lower' places [0,0] at bottom left, correcting orientation.
Final Answer:
Because image origin defaults to upper left; fix by setting origin='lower' -> Option B
Quick Check:
origin='lower' fixes upside-down images [OK]

Quick Trick: Set origin='lower' to flip image upright in imshow [OK]

Common Mistakes:

Master "Image Display" in Matplotlib

9 interactive learning modes - each teaches the same concept differently

More Matplotlib Quizzes

Why does imshow sometimes display images upside down, and how can you fix it?