How to get the same visual look of object in another rendering software (Blender)?

[Dene33]

What render settings/materials (let's say in Blender) I need to use to get the same render as in neural renderer? Here is the result of finding camera parameters (as you can see loss became 0 in the end and camera just moved into the object):

Here is my reference image, rendered in Blender:

Here is also comparison between original reference image and image rendered in Blender (with close camera parameters):

Original:

Blender:

Thanks.

[Dene33]

Or maybe something else is wrong here? Can't make it work even with simple shapes like circle of plain color. Color is not an issue here? Why do images created with --make_reference_image work but my own images don't?

[Dene33]

Ok, probably find the solution. .png images have to be without alpha, 24 color depth.