Shadowy Daisy

Shadowy Daisy
by damned-truths

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6
votes
1answer
267 views

What properties of an image could be used to programmatically discard it as “bad”?

I'd like to have a quicker review process of my photos when I dump them from the camera to the computer. Surely there are some parameters that I can extract programmatically from the photos and this ...
4
votes
1answer
857 views

Quality of ImageMagick CR2 to JPEG conversion

Is there any quality difference between ImageMagick and Lightroom, when converting CR2 to JPEG in 100% quality?
4
votes
1answer
1k views

How can I get a uniform white balance on a batch of JPEG images?

I have shot many photos of the same subject in JPG. Since I have shot for many hours with different light conditions the white balance is quite different for all the shots. I would like to ...
3
votes
2answers
429 views

How to auto-trim solar eclipse photos?

I've got a few hundred photos of the November 2012 eclipse, and I'd like to compose them into a time series. To do that, I'd like to crop all of them to the same size, a square with a little space ...
0
votes
2answers
123 views

Why does the result of Photoshop Curves and Imagemagick Curves differ?

When using imagemagick to apply curves (convert -function), the output differs from the output when I'm using a curves adjustment layer in Photoshop. What is the reason for this difference? I'm using ...
0
votes
0answers
16 views

ImageMagick Distort Perspective around a rectangle, without affecting aspect ratio

I have an imperfectly aligned/distorted photograph against a repeating rectangular pattern background, where one can easily identify what should be straight lines, both horizontally and vertically. I'...
0
votes
2answers
489 views

Best Unsharp Mask settings after resizing photos for imagemagick

I'm resizing photos uploaded to a photography gallery and have thus applied an unsharp mask to attempt to preserve the photos original sharpness. The settings I use are: radius: 0 sigma: 0.5 amount: ...
-2
votes
1answer
121 views

Remove all metadata from PNG, commandline [closed]

I'm trying to create really small PNG thumbnails from JPGs using GraphicsMagick. gm convert coolphoto.jpg -resize 16x16 -colors 6 coolphoto_16x16_6color.png These get down to 342 bytes, but they ...