Image is getting pixeled after resizing it

[RLeDEV]

Describe the bug
For some reason, after resizing an image using a specific aspect ratio, it getting a bit pixeled, it may happen because of the resizing algo.

To Reproduce
Steps to reproduce the behavior:

1. Get an image from local machine
2. Use Resizer function to resize it using the following parameters:
   compressFormat: png, quality: 100, rotation: 0, outputType: file
3. Image is getting resized as expected but a little pixeled.

Expected behavior
Shouldn't reduce the quality of the image after resizing it.

Screenshots
Image before uploading it:

After:

[Japelino]

Having the same problem, resulting image is very blocky instead of being smooth

[Ben-CA]

Are you uploading images with indexed colors? (Like a GIF or low-bitrate PNG)

This might cause that; you'd get the same in Photoshop if you didn't first convert to full RGB.