Legacy ImageMagick Discussions Archive

What we are doing is,

When ever a person uploads a original image, we are storing that image in tmp folder as PP_cbgdt56ty and we are converting that tmp file to different dimensions..

when i do, identify /tmp/PP_qfl7QW,
It says identify: no decode delegate for this image format `/tmp/PP_qfl7QW' @ error/constitute.c/ReadImage/555.

Hello, I am trying to resize a image with the following command, convert /tmp/PP_qfl7QW -verbose -strip -resize 200x200 -quality 99 -density 72x72 -units pixelsperinch /tmp/PP_bNI5iq and its giving me a error like below, convert: no decode delegate for this image format `/tmp/PP_qfl7QW' @ error ...

Perfect. The command which you gave me works extra ordinary.

Thanks a lot fred for explaining me very clearly.

convert input.jpg/jpeg/tiff/png/tif -verbose -strip -resize 1200x1200 -quality 75 -density 72x72 -units pixelsperinch output.jpg

May i know why you used -strip and why you removed +profile "*" in the command above.

I am trying to execute a command like below to change the DPI, Resize, Quality and removing profile and comment convert input.jpg/jpeg/tiff/png/tif -density 72 -verbose -resize 1200x1200 -quality 75 +profile "*" +comment output.jpg My first question is, The command which i am using is correct or not ...

In the old system we are using a command like below,

convert image -verbose -resize 1200x1200 -quality 75 +profile * +comment resultimage

i am not sure what is +profile and +comment. Can you please explain what is +profile and +comment and why we use use this?

Cool Thanks Fred.

Most probably we use jpg and jpeg formats. I think for these two formats all the commands (-resize, -density -quality) should work fine right?

Sorry its 1200x1200 not 1200x12000

It works fine for me now.

After changing the DPI i am checking it in adobe photoshop, for some reason my photoshop is fixed to 300 PPI by default and now i verified via Preview app in MAC and through identify and now its showing me the correct Resolution.

Hello All, We are upgrading our system from GM to IM and i installed IM latest version 6.8.8-2 (for more info you check below), Version: ImageMagick 6.8.8-2 Q16 x86_64 2014-01-24 http://www.imagemagick.org Copyright: Copyright (C) 1999-2014 ImageMagick Studio LLC Features: DPC OpenMP Delegates ...

Looks like the issue is fixed.

After changing the DPI i am checking it in adobe photoshop, for some reason my photoshop is fixed to 300 PPI by default and now i verified via Preview app in MAC and through identify and now its showing me the correct Resolution.

I tried the commandconvert image.jpg -units pixelsperinch -density 72x72 resultimage.jpg which you gave but still it did not worked for me.

Here is the link for the input image https://app.box.com/s/f77vaznl5ijxm60qt1kq

I am using jpg image files. and i am on version 6.8.8-2

I am using,

Version: ImageMagick 6.8.8-2 Q16 x86_64 2014-01-24 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2014 ImageMagick Studio LLC
Features: DPC OpenMP
Delegates: bzlib djvu fftw fontconfig freetype jbig jng jpeg lcms lqr lzma openexr pangocairo png tiff x xml zlib