raw to JPEG conversion

[davidb2002]

I am working on a PHP application which will allow users to upload raw camera files and I would like to convert them to jpeg. Is there a way to do this with ImageMagick (or perhaps something else?).

[Bonzo]

Have you tried a search for RAW? It comes up with 48 pages.

Basicaly it the same as any other conversion:

Code: Select all

convert image.CR2 -thumbnail 128x128 output.jpg

As you are saving to jpg speed up the process with the jpg hint:

Code: Select all

convert -define jpeg:size=128x128 image.CR2 -thumbnail 128x128 output.jpg

[fmw42]

see http://www.imagemagick.org/Usage/formats/#rgb

not sure if raw uses -define or -size for the definition of the input size. For reading in jpg it is definitely -define for the reading hint

see
http://www.imagemagick.org/Usage/formats/#jpg_read

[henrywho]

ImageMagick seems to be converting raw files with the bundled dcraw 9.06 which is a bit too old.

You may want to take a look at the dcraw "clone" in LibRaw (http://www.libraw.org/download) which has more demosaic and denoise methods.