Rotated images sometimes look grainy and unnatural, making it easy to eliminate certain incorrect options #5

Nouveau ticket

cerealxp · 2023-06-12T13:49:06-04:00

cerealxp a commenté

2023-06-12 13:49:06 -04:00

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Propriétaire

Here is an unrotated image of a gnome presented by freecaptcha:

![img](Screenshot 2023-06-12 at 11.47.56.png)

Now, upon clicking:

![img](Screenshot 2023-06-12 at 11.49.00.png)

Notice that the resolution declines considerably.

It is not clear to me why this happens. Does resolution necessarily drop when an image is rotated? Is it a problem with the specific tool I'm using? What tool are we even using to rotate images, and what are the alternatives?

Here is an unrotated image of a gnome presented by freecaptcha: ![img](Screenshot 2023-06-12 at 11.47.56.png) Now, upon clicking: ![img](Screenshot 2023-06-12 at 11.49.00.png) Notice that the resolution declines considerably. It is not clear to me why this happens. Does resolution necessarily drop when an image is rotated? Is it a problem with the specific tool I'm using? What tool are we even using to rotate images, and what are the alternatives?

Screenshot 2023-06-12 at 11.49.00.png

354 KiB

Screenshot 2023-06-12 at 11.47.56.png

358 KiB