Legacy ImageMagick Discussions Archive

Thanks!

The positioning does not appear to be correct... if the geometry from the top-left corner of the canvas to the top-left corner of the image?

Hello, I need to make one large image from multiple smaller images. All are pbm, but then I want the output as png. Additionally the first image needs to be resized to 50%x50%. I understand more or less how to do this using many separate commands, but efficiency and speed is an issue so I'd like to ...

I figured out that if I remove the first 8 bytes and the last 163 bytes then it's the same as the Ghostscript generated TIF and that works. So this can be closed.

Yeah, tried that already and the resulting TIF image was identical. Thanks, though.

Hello, I'm converting PBMs to TIF Group 4 so they can be embedded into a PDF (I'm creating the TIFs with ImageMagick but not the PDF). The command I am using is: convert image.pbm -compress Group4 image.tif However, neither Acrobat, SumatraPDF nor Ghostscript will read any of the PDFs containing ...

OK so defining the alpha type works on TIFF files, but JP2 files still refuse to set the alpha correctly.

That is some magic. You should patent it and sell it Canon.

Hi Fred, I put the version in the first post.

this is more efficient, so that you do not read the input twice Cools, thanks! I've been working on this for two years, on and off: automatically making the "best" image from a raw camera file. For a while, I favoured a 50% blend of the "best gamma" image and an equalisation. Then I favoured a ...

I give up. I'll make my own mask as a separate image and apply it myself on display.

After hours more of testing I've discovered that converting from PNG to TIFF does exactly the same thing: there is an "Alpha 1" channel and it's not correctly recognized by anything. This is what Photoshop displays for the channels for both TIFF and JP2: http://i61.tinypic.com/znlils.png Whereas if ...

Figured it out. It did work all along, just Photoshop had the transparent layer disabled by default. EDIT: OK, so it's not solved. It's not actually transparent, but it does contain an alpha layer. But the alpha layer does not do anything. If I convert it back from a jp2 to a PNG then the only thing ...

I'm having a very difficult time trying to create a transparent JPEG2000. Specifically I want to create a transparent JPC file (JPEG2000 codestream) but a transparent JP2 would be a start. As far as I can tell ImageMagick uses JasPer library for JPEG2000 conversion. The problem with using JasPer ...

Oh wow! (Edit: apparently w0w is changed to ???) I feel like a bit of an idiot. What I was typing was: convert test.png -compose softlight -composite equalize.png softlight1.png Instead of: convert test.png equalize.png -compose softlight -composite softlight1.png Thanks a lot for your help Fred ...

Hello, I need to do a transformation with IM that acts like Photoshop's softlight. IM's softlight composite mode gave me a completely different looking result to how Photoshop does it. Does anyone know what the difference is and how I can imitate a Photoshop-style softlight filter? The reason for ...