Search found 5 matches

by tgrove
2018-02-05T14:37:24-07:00
Forum: Users
Topic: create a 'glare' effect over the brightest 1% of pixels
Replies: 8
Views: 4651

Re: create a 'glare' effect over the brightest 1% of pixels

Yep, the fftw library was missing. Got it installed, now everything's working perfectly, thanks again for all the help.
by tgrove
2018-02-05T12:00:11-07:00
Forum: Users
Topic: create a 'glare' effect over the brightest 1% of pixels
Replies: 8
Views: 4651

Re: create a 'glare' effect over the brightest 1% of pixels

Here I have to use HDRI, so I use IM 7 which includes it. You could do it all in IM 7 or with a build of IM 6 with HDRI. The step does a convolution of the star pattern above with the tmp1 top 1% bright image in the Fourier domain. A limitation of ImageMagick here is that both images must be padded ...
by tgrove
2018-02-05T09:37:29-07:00
Forum: Users
Topic: create a 'glare' effect over the brightest 1% of pixels
Replies: 8
Views: 4651

Re: create a 'glare' effect over the brightest 1% of pixels

This is a huge help! Thank you so much. You guys are real wizards with all this. Bravo!
by tgrove
2018-02-02T15:25:02-07:00
Forum: Users
Topic: create a 'glare' effect over the brightest 1% of pixels
Replies: 8
Views: 4651

Re: create a 'glare' effect over the brightest 1% of pixels

@fmw42:
imagemagick version 6.9.3-6 Q16 x86_64. I'm running mac OS 10.12.6.

Here's an example input. I'm hoping to increase the amount of sparkles/flares in the output. I need it to be an automated process as it's going to be part of a photo shoot series.
Image
by tgrove
2018-02-02T13:43:07-07:00
Forum: Users
Topic: create a 'glare' effect over the brightest 1% of pixels
Replies: 8
Views: 4651

create a 'glare' effect over the brightest 1% of pixels

Hello! New to imagemagick so please forgive me if this is a very basic question. I'm hoping to create a glare effect over the brightest pixels in a photo, as in the photo below. I could see two potential ways of doing it: creating a threshold mask and using morphology to make a diamond/plus shape ...