Reading image information without LoadImage

BlitzMax Forums/BlitzMax Programming/Reading image information without LoadImage

BlitzSupport (Posted 2009) [#1]

For anyone who doesn't check the Code Archives much, I'm quite proud of this! It lets you read width/height/depth and some other information directly from image files without having to load the whole file via LoadImage first: Retrieve image information without loading entire image It currently supports BMP, PNG, JPEG and Gif formats. [EDIT: Now supports TGA.]

Nate the Great (Posted 2009) [#2]

nice job... In fact, I think I might need this for a little project of mine.

impixi (Posted 2009) [#3]

Yes, very useful, James. Thanks.

ImaginaryHuman (Posted 2009) [#4]

Nice, useful for paint programs and the like.

Bremer (Posted 2009) [#5]

Thank you for sharing. I have sent you some code to get values (width,height,depth) from TGA files.

BlitzSupport (Posted 2009) [#6]

Thanks, Zawran, but I've just been adding TGA -- see updated entry!

Bremer (Posted 2009) [#7]

Ah, too late then. I took a quick look at .tiff, but it looks a bit more complex. I might take a closer look during the weekend though.

BlitzSupport (Posted 2009) [#8]

This code now supports online images too, ie. pass a URL and you get the width/height/other information back, again without having to read the whole image. Not sure what actual use that is, but it's very cool.

Armitage 1982 (Posted 2009) [#9]

Nice !! Very useful for image editing and other image related tool. Thanks for this addition :)

BlitzSupport (Posted 2009) [#10]

I've just fixed it for PPC Macs -- as I suspected, I needed to fix the byte-endianness.