Simple image loading libraries

StackOverflow https://stackoverflow.com/questions/2039200

  •  19-09-2019
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Question

I have an app that uses this library (actually a direct port to D) for some image processing. I'm looking for some other libraries of a similar style to use to load other file types.

Things I need/want:

  • Loss less format.
  • Simple C API.
  • Loads data into buffers in a raw pixel format.
  • Open source (as in I can get source files and compile them for my own use, aside from that, licensing doesn't matter)

Anyone know of anything like that?

Was it helpful?

Solution

devIL and SDL_Image supports a good deal of formats. Derelict provides their bindings.

My own code for using these and have a raw buffer:

OTHER TIPS

PNG: for loading and saving you can try LodePNG library

C/C++: http://members.gamedev.net/lode/projects/LodePNG/

D port: www.dsource.org/projects/scrapple/wiki/LodePngLibrary

FreeImage is pretty comprehensive, and very clean and easy to use.

http://freeimage.sourceforge.net/

You might want to try libpng, although I wouldn't exactly call it easy to use.

Other than that, you might try working directly on bitmaps, with no libraries at all.

I'd consider using imageMagick ( http://www.imagemagick.org/script/index.php ) for all your image loading needs. It supports a lot of formats in a lot of different bit depths, reading and writing for most of them.

It may do a lot more than you need, but its a very well designed library and I've used it in several projects.

It is GPL compatible. (And I think commercial licenses are available too)

You could always try the gdimage library. I've never had any problems with it, though mist of the work I've done with it has been in PHP.

You can use software such as Netpbm to convert to/from PPM format, which is extremely easy to read/write from any program without needing external libraries.

A PPM file either looks like this:

P6
800 600 255
# followed by 800x600x3 bytes of values between 0 and 255, i.e.
\xFF\x00\x00\x80\x80\x00\x00\xFF\x00\x00\x80\x80\x00\x00\xFF...
# but not escaped

or like this:

P3
800 600 255
# followed by 800x600x3 decimal numbers between 0 and 255, i.e.
255 0 0  128 128 0  0 255 0  0 128 128  0 0 255  ...

I think SOIL (Simple OpenGl Image Library) fits your description nicely. It has many formats, iirc the jpg code is even ported from the same source as yours.

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