Legacy ImageMagick Discussions Archive

For completeness and to any lost coder who needs to do something similar, this is what I've ended up with in PHP:


$img = new Imagick();
$img->readImage('in.png');

// Convert the image to a TIF file
$img->setImageFormat('tiff');

// Set the image type to TrueColour Matte (transparency should be ...

Well, in the absence of a PHP solution, and a need to get sRGB TIF files through I have created the following script which may be useful to someone else in the future as a starting point.


#!/bin/bash
############################################
# convertGreyscaleTosRGB
# Transform images from ...

The imagick object is actually handed off to a storage class to write to disk. Live code doesn't actually "file_put_contents", but I bet it doesn't use writeImage either, which is why I didn't include it here. If it makes you feel any better I can use writeImage in the example, file output is the ...

From various searches on Stack Overflow and this forum, I had assumed "type" needed to be used with the "colorspace" option, though I admit my interpretation is coloured (pun) by lack of knowledge in this area.

$img->setoption("colorspace:auto-grayscale", "off"); Is another option I've found ...

I am hoping someone can help, as I'm a little bit stuck with some code.

From the command line, I can take an input PNG file, convert it to TIF and force it to sRGB using the following:

convert in.png -colorspace srgb -type truecolor out.tif

and it outputs a TIF file with:
colorspace:13 (Imagick ...