Search found 5 matches
- 2015-12-21T08:15:44-07:00
- Forum: Users
- Topic: Gaussian-blurring equirectangular panoramas
- Replies: 4
- Views: 8692
Re: Gaussian-blurring equirectangular panoramas
Thank you, I tested a bit this approach (1) and also with polar -> blur -> depolar (2) double split approach (polar is applied to original img and flipped img, then both blurred, then combining top halves) The (2) gives me correct and perfect results on poles, but unfortunately produces some issues ...
- 2015-12-13T08:49:07-07:00
- Forum: Users
- Topic: Gaussian-blurring equirectangular panoramas
- Replies: 4
- Views: 8692
Gaussian-blurring equirectangular panoramas
Hi all, since there is not so much around about this specific task of consistently blur an equirectangular image (ratio 2:1), here I am to ask what can be automatised via IM and what's my current status. http://s3.postimg.org/5xxq4pyrn/eq_gaussblur.jpg First off, before applying a gaussain blur ...
- 2015-11-16T17:24:44-07:00
- Forum: Users
- Topic: Extracting highlights from HDR image
- Replies: 6
- Views: 4017
Re: Extracting highlights from HDR image
Yep, I tried also threshold...
But gamma gave best results, using very low values around 0.1 and then converted to grayscale.
Thanks!!
But gamma gave best results,
Code: Select all
( -clone 0 -colorspace Gray -gamma 0.1 )
Thanks!!
- 2015-11-16T16:04:59-07:00
- Forum: Users
- Topic: Extracting highlights from HDR image
- Replies: 6
- Views: 4017
Re: Extracting highlights from HDR image
try just using the grayscale image as a mask. Unix syntax: convert image \( -clone -colorspace gray \) -compose multiply -composite result You can apply other operators such as -gamma, -levels or -sigmoidal-contrast to the grayscale image if that helps. I'm trying this, I'm on windows so I removed ...
- 2015-11-16T14:45:46-07:00
- Forum: Users
- Topic: Extracting highlights from HDR image
- Replies: 6
- Views: 4017
Extracting highlights from HDR image
Hi all, Maybe a very basic question, but after googling a bit, I found no example on this specific kind of operation. Basically I'd like to extract highlights from input HDR image (*.hdr) to a PNG (or JPG) As an example, lets imagine the typical sunny landscape: the produced map should only have a ...