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Black image from noisy image

Posted: 2017-04-04T08:12:38-07:00
by optikaa
Hi

An image upload using PHP/imagick is giving a black image, the image is very grainy/noisy which is from halftone magazine print that is already been heavily compressed. I blurred the image to be sue it was that and it worked fine.

Is there anything that can be done to make it work, maybe a memory issue?

Re: Black image from noisy image

Posted: 2017-04-04T09:26:11-07:00
by fmw42
You message is not very clear about the issue. What does "make it work" mean?

We cannot help with such little information and no picture to view. You did not even provide your command line so we do not know what the input and output formats are.

Please, always provide your IM version and platform when asking questions, since syntax may differ. Also provide your exact command line and if possible your images.

See the top-most post in this forum "IMPORTANT: Please Read This FIRST Before Posting" at viewtopic.php?f=1&t=9620

For novices, see

viewtopic.php?f=1&t=9620
http://www.imagemagick.org/script/comma ... essing.php
http://www.imagemagick.org/Usage/reference.html
http://www.imagemagick.org/Usage/

Re: Black image from noisy image

Posted: 2017-04-04T16:17:06-07:00
by optikaa
It's converted using the PHP extension, I changed the format from PNG to JPG and that has solved it.