Search found 19 matches

by Skygaze
2020-02-25T22:23:38-07:00
Forum: Digital Image Processing
Topic: Any recom for HDR (6x2EV) and batch proc?
Replies: 18
Views: 1270

Re: Any recom for HDR (6x2EV) and batch proc?

Some progress, some odd results. https://sites.google.com/site/alistargazing/home/image-processing/crescent-moon-hdr . The image I posted shows that I need to blur the mask, but magick mask_I1fh.tiff -channel A -virtual-pixel transparent -morphology Distance Euclidean:4,10! mask_I1fb.tiff appear ide...
by Skygaze
2020-02-20T09:14:15-07:00
Forum: Digital Image Processing
Topic: Any recom for HDR (6x2EV) and batch proc?
Replies: 18
Views: 1270

Re: Any recom for HDR (6x2EV) and batch proc?

Got it! I decided to keep playing with the notion of working in "high float" without dividing by 65536, so instead I chose the white threshold to be 15270 x 65536 -> 1000734720. I used 15270 since my previous guess at true saturation was 15284. Then snibgo's saturated count gave me: MIN=1.30025e+08 ...
by Skygaze
2020-02-19T23:27:19-07:00
Forum: Digital Image Processing
Topic: Any recom for HDR (6x2EV) and batch proc?
Replies: 18
Views: 1270

Re: Any recom for HDR (6x2EV) and batch proc?

[edit: Succeeded in the next post - I will leave this "intermediate" post here for continuity] Even more progress! Thanks for your patience to my slowness... I found a ubuntu manpage for dcraw 9.27 ( http://manpages.ubuntu.com/manpages/bionic/man1/dcraw.1.html ), and I think I am starting to catch o...
by Skygaze
2020-02-18T14:41:13-07:00
Forum: Developers
Topic: Minor webpage documentation clarification for HDRI
Replies: 6
Views: 270

Re: Minor webpage documentation clarification for HDRI

For the install from windows source ( https://magick.imagemagick.org/script/install-source.php#windows ), I recommend the following changes, all in the spirit of encouraging the non-expert to not give up too soon (I almost did). 1) Directly under the section header "Install from Windows Source" I th...
by Skygaze
2020-02-17T23:51:49-07:00
Forum: Developers
Topic: Minor webpage documentation clarification for HDRI
Replies: 6
Views: 270

Re: Minor webpage documentation clarification for HDRI

I managed to create a pull for the first page before seeing your comment. This first one (shown below) is just a one-line change, and I will post the others here tomorrow before creating pulls. The others are of similar "clarification" nature. Very minor in the scheme of things but would have saved ...
by Skygaze
2020-02-17T17:24:47-07:00
Forum: Developers
Topic: Minor webpage documentation clarification for HDRI
Replies: 6
Views: 270

Re: Minor webpage documentation clarification for HDRI

I will try a pull request.
TTFN,
Alister.
by Skygaze
2020-02-17T16:57:28-07:00
Forum: Digital Image Processing
Topic: Any recom for HDR (6x2EV) and batch proc?
Replies: 18
Views: 1270

Re: Any recom for HDR (6x2EV) and batch proc?

Hmmm, a bit puzzled... saturated sensels output gives me MIN=1.30025e+08 MAX=1.03037e+09 SAT_PC=100 which in a way makes sense since at 14-bit (Canon CR2) I am asking for pixels brighter than 16383. But min 1.30025e+08 ! Wonder if it has anything to do with the dcraw call? dcraw -v -D -W -w -g 1 1 -...
by Skygaze
2020-02-17T08:59:49-07:00
Forum: Developers
Topic: Minor webpage documentation clarification for HDRI
Replies: 6
Views: 270

Minor webpage documentation clarification for HDRI

Hi, I have some simple suggestions for the HDRI and Windows build pages - is this the right place to post them? Some things are obvious to experts, but not being one, I stumbled a bit. Perhaps I could help in a small way?
Regards,
Alister.
by Skygaze
2020-02-17T08:08:25-07:00
Forum: Digital Image Processing
Topic: Any recom for HDR (6x2EV) and batch proc?
Replies: 18
Views: 1270

Re: Any recom for HDR (6x2EV) and batch proc?

Ah, relative to the path containing the images. My relative newness shows - I had only ever used IM from one place acting on images in another. Until now I've never had to "attach" profiles to particular images. Thanks!
by Skygaze
2020-02-16T19:55:48-07:00
Forum: Digital Image Processing
Topic: Any recom for HDR (6x2EV) and batch proc?
Replies: 18
Views: 1270

Re: Any recom for HDR (6x2EV) and batch proc?

Coming along nicely! Thanks to all your help and snippets snibgo, things are running without errors and I've gone from CR2 to XYZ space and down to sRGB. The XnView decode from CR2 left a bunch of artefacts along the blown-out line that the decode to XYZ to sRGB did not! ( https://sites.google.com/s...
by Skygaze
2020-02-14T21:35:14-07:00
Forum: Digital Image Processing
Topic: Any recom for HDR (6x2EV) and batch proc?
Replies: 18
Views: 1270

Re: Any recom for HDR (6x2EV) and batch proc?

Getting there slowly, ran out of time to do more today, but... I Q32 and HDRI enabled: Version: ImageMagick 7.0.9-22 Q32 x64 2020-02-14 http://www.imagemagick.org Copyright: Copyright (C) 1999-2018 ImageMagick Studio LLC License: http://www.imagemagick.org/script/license.php Visual C++: 192428316 Fe...
by Skygaze
2020-02-13T13:50:56-07:00
Forum: Digital Image Processing
Topic: Any recom for HDR (6x2EV) and batch proc?
Replies: 18
Views: 1270

Re: Any recom for HDR (6x2EV) and batch proc?

Thanks more snibgo... and I will still need your help with a couple of example commands, because I can't find any examples with searches so far. Step 1... I downloaded and converted an EXR to jpg and it looks fine. I do know how to use evaluate multiply on the tifs (converted from Canon RAW) [magick...
by Skygaze
2020-02-13T08:56:50-07:00
Forum: Digital Image Processing
Topic: Any recom for HDR (6x2EV) and batch proc?
Replies: 18
Views: 1270

Re: Any recom for HDR (6x2EV) and batch proc?

Thanks for pointing me in this direction. Indeed in principle it is straightforward... the absolute brightness of any pixel can be figured out, then choose which parts of the histogram to stretch based on what feature one wants to emphasize. Classic enhancing of Hubble images of galaxies showing bla...
by Skygaze
2020-02-12T16:56:20-07:00
Forum: Digital Image Processing
Topic: Any recom for HDR (6x2EV) and batch proc?
Replies: 18
Views: 1270

Any recom for HDR (6x2EV) and batch proc?

Hello friends, I have hit a wall trying to process a "crescent Moon with earthshine" - I've used enfuse/enblend with success on the full Moon for a few years, but I've come to the conclusion that I just can't get the control I need. The overexposed images bleed light into the earthlit portion and su...
by Skygaze
2018-04-04T23:59:08-07:00
Forum: Digital Image Processing
Topic: Gray balance approach reasonable? (snibgo)
Replies: 8
Views: 24819

YES !!!! Re: Gray balance approach reasonable? (snibgo)

WOOHOO! Holy smokes, thank you so much for all your help snibgo. It was a bit of a steeple chase fixing the compile errors and the changes in MagickCore function calls from V6.9x to V7.0x, but I am so grateful for your guidance, and happy with myself at not having given up in the face of "yet anothe...