Editing .tga

[mousesnob]

Im looking to edit a .tga photo without changing the exact file size (down the the single byte level) at all.

 

Bringing the .tga file through Gimp (even without making a single edit) and exporting it adds  quite a bit of bulk...

[Kilrah]

tga can be compressed so if that one is any change will significantly affect size in an uncontrollable way.

[RAS_3885]

Additionally, making ANY edits to the image itself will change the contents of the image and thereby affect the file size (either larger or smaller). You'd have to get incredibly lucky I'd imagine to make edits in a way that cancel out file size changes down to the byte level.

 

EDIT: Only valid for compressed image formats.

[Kilrah]

2 minutes ago, RAS_3885 said:

Additionally, making ANY edits to the image itself will change the contents of the image and thereby affect the file size (either larger or smaller). You'd have to get incredibly lucky I'd imagine to make edits in a way that cancel out file size changes down to the byte level.

On an uncompressed format like BMP the file size is directly defined by the image dimensions (plus header, but you can take care of that), the content doesn't matter.

[RAS_3885]

Just now, Kilrah said:

On an uncompressed format like BMP the file size is directly defined by the image dimensions (plus header, but you can take care of that), the content doesn't matter.

Huh, well I learned something today I guess!

 

I always assumed that at some level the R/G/B values of each pixel lead to SLIGHTLY different data sizes, but this was based off me really only ever dealing with compressed image formats.

[mousesnob]

8 minutes ago, Kilrah said:

On an uncompressed format like BMP the file size is directly defined by the image dimensions (plus header, but you can take care of that), the content doesn't matter.

 

5 minutes ago, RAS_3885 said:

Huh, well I learned something today I guess!

 

I always assumed that at some level the R/G/B values of each pixel lead to SLIGHTLY different data sizes, but this was based off me really only ever dealing with compressed image formats.

Thanks for the help guys but i firgured it out. 

Im using the Unity Asset Bundle extractor to edit 7 days to die.

Seems like once i've rebuilt the .bundle file th program compresses it down for me