[BUG] Color in the Image is lost or gets changed

[ASH1998]

Describe the bug
Color in the Image is lost or gets changed after after removing background with u2net.
The output for the color is not the same as the original image. Please check the images provided.

So my question is what sort of pre/post processing is done to make the output as such, and is there a way to get output close to original image.

To Reproduce
Steps to reproduce the behavior:

1. Use u2net base model on the original image
2. Verify the colors of output

Expected behavior
The image should look the same.

Images
Original Image

BG Removed Image

OS Version:
Linux 20.04

Rembg version:
v2.0.21

[danielgatis]

This issue is related to the model.
You must train a model with your images to get a better result.
The default model is a general one... so it can get some odd results.

#193 (comment)