Thanks Greg. I made a few more tests and it turns out that the same image data written directly to a file works fine. The problem is apparently introduced when I write to stdout.
The '\r\n' vs '\n' makes sense because that's where Python insists on taking control and doing the right thing for the platform. I have to figure out how to stop that. Thanks, Thomas On Mon, Mar 29, 2010 at 3:16 PM, Gregory J. Ward <gregoryjw...@gmail.com> wrote: > Hi Thomas, > > I had a quick look at your output, and it appears that the header is being > written with '\r\n' at the end of each line rather than the expected '\n' > alone. This causes problems especially for the resolution string. The > pcompos program (and most others in Radiance) set binary mode before writing > any output. Somehow, your script is bypassing this step, but I didn't have > a look at it and don't know Python, anyway, so probably couldn't be much > help. > > -Greg > >> From: Thomas Bleicher <tbleic...@googlemail.com> >> Date: March 29, 2010 5:25:14 AM CDT >> >> Hi all, especially Greg. >> >> I'm currently working on a Python version of falsecolor. The script >> uses pcomb, psign and pcompos just like the original falsecolor >> script. As always it works fine on Mac/Unix but Windows need further >> care: >> >> The images I get look all right to me but when I try to open them in >> ximage (or the Windows equivalent) I get the message that the image is >> not a valid file format. It seems to be related to the resolution >> string. However that is present and the image basically is created by >> pcompos. >> >> My wild guess is that the information in the head with all it's back >> slashes and quoting interferes with the format of the image file. If >> that was the case I could remove the offending lines if I could >> identify them. >> >> It's also entirely possible that the binary data of the image gets >> messed up in the last step. I tried to keep the default output to >> stdout, so I have to read the image data from the pcompos and write it >> to stdout. That works on Unix but I'm not sure about Windows. >> >> You can find 2 sample picture files as "attachments" at the end of this >> site: >> >> http://sites.google.com/site/tbleicher/radiance/falsecolor2 >> >> "fc_mac.hdr" was created on a Mac, "fc_win.hdr" on Windows. The images >> have no relation to the web-site, but it's the easiest way for me to >> upload these two tiny files. >> >> I hope someone can make sense out of this. >> >> Regards, >> Thomas > > _______________________________________________ > Radiance-dev mailing list > Radiance-dev@radiance-online.org > http://www.radiance-online.org/mailman/listinfo/radiance-dev > _______________________________________________ Radiance-dev mailing list Radiance-dev@radiance-online.org http://www.radiance-online.org/mailman/listinfo/radiance-dev
