On Wed, 2002-05-29 at 19:52, Adam Morton wrote:
> You want to "read the RGB pixel values from them and write these to a file"? > As was already pointed out, that is already what is in the file for some > graphics formats! Yes, I know. But I wanted a way to be format independent and was hoping for a quick way to do it in Perl. I could do this all in C, but want a nice way to make my program available to my Windows using colleagues (I have the idea of building a GUI in). Plus, I want to learn Perl... > What is it you are actually trying to accomplish here? Integrate what I am doing now into one program. > Maybe you just want to use imagemagick on the command line to convert your > files to a single format? Nope, I want to create a program, partly to get to know Perl and partly to make things very easy for people to use the program. I have to do the conversion, processing,calculation plotting separately - I'd like a program to do all of it. > In any case, image magick (as also previously mentioned) is the way to go. > Using the perl library (http://www.imagemagick.org/www/perl.html) you just > have to open the image (the library figures out what format it is > automagickally), get width and height, then loop through calling pixel and > writing the results. I looked through the docs for image magick and found: pixel[x, y] string hex value (e.g. #ccc) at position (x, y) in the Set() function section, this didn't imply to me that I could read the value. Am I just missing something, I feel I must be? Thanks, Chris. > > Hi, > > > > I'm very new to Perl and have a question that I haven't been able to > > find an answer to. I want to be able to read an image file (BMP, PNG, > > JPEG, etc...) or a series if image files and read the RGB pixel values > > from them and write these to a file. > > > > I have looked at various image libraries for Perl and around on the > > Internet but I have not been able to find a method of doing what I want > > to do. I'd like to make the program as platform and image independent as > > possible, hence me trying it in Perl. > > > > Could any point me in the right direction or provide a few hints? -- Chris Egan [EMAIL PROTECTED] -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
