Search found 1147 matches
- 2016-10-11T09:26:08-07:00
- Forum: Bugs
- Topic: Original dimensions are remembered when cropping => issues with PDF output
- Replies: 3
- Views: 4853
Re: Original dimensions are remembered when cropping => issues with PDF output
In a cropped PNG image, the original dimensions are stored in the standard "oFFs" chunk and the nonstandard "vpAg" chunk. The "+repage" option instructs ImageMagick to discard those chunks while writing the PNG output file.
- 2016-10-09T05:33:53-07:00
- Forum: Developers
- Topic: Request: add portable.7z files to download set
- Replies: 1
- Views: 8427
Request: add portable.7z files to download set
I'm observing that the most downloaded files from SourceForge are the *portable.zip files; I think it would be worthwhile adding *portable.7z to save some wear and tear on the Internet, being less than half the size (31.6MB versus 74.8MB).
- 2016-10-06T11:01:01-07:00
- Forum: Bugs
- Topic: Transparency ignored in GIF
- Replies: 6
- Views: 15868
Re: Transparency ignored in GIF
It is a 2-bit GIF with 4 colors plus the transparent color; the transparent color is therefore out of range (note the "4c"):
Code: Select all
magick identify *.gif
pages.gif GIF 18x16 18x16+0+0 8-bit sRGB 4c 102B 0.000u 0:00.000
- 2016-09-13T09:18:24-07:00
- Forum: Users
- Topic: Convert PNG to BGR 565
- Replies: 1
- Views: 2872
Re: Convert PNG to BGR 565
I answered the same question on StackOverflow last night. See
http://stackoverflow.com/questions/3945 ... 5#39461115
http://stackoverflow.com/questions/3945 ... 5#39461115
- 2016-09-09T05:55:15-07:00
- Forum: Bugs
- Topic: Hang file and error INFECTED PNG files
- Replies: 5
- Views: 11911
Re: Hang file and error INFECTED PNG files
The "hang" is a 32k by 32k by 1-bit grayscale PNG which expands to a 4-terabyte image. Some of the "infected_error" images are CgBI files not PNG files, and others seem to mostly have truncated IDAT or IDAT with bad CRC.
- 2016-09-06T17:23:55-07:00
- Forum: Users
- Topic: [Solved] Convert a PNG image to a C++ Array
- Replies: 15
- Views: 33048
Re: [Solved] Convert a PNG image to a C++ Array
"-depth 8" means 8 bits per sample, so indeed the command will give you a 32-bit RGBA (8-8-8-8). I should have changed the name of the output file to "rgba14x14.h" though, just to clarify that. I'll do that now.
- 2016-09-06T11:07:06-07:00
- Forum: Users
- Topic: [Solved] Convert a PNG image to a C++ Array
- Replies: 15
- Views: 33048
Re: Convert a PNG image to a C++ Array
My image is 14*14. Should I change the canvas size to 28*28? Or do I completely misunderstand it? OK, then, assuming you have a 14x14 RGBA file.png, convert file.png -define h:format=rgba -depth 8 -size 14x14 rgba14x14.h I don't know what orientation Notepad wants. If your result is upside-down or ...
- 2016-09-06T08:19:59-07:00
- Forum: Users
- Topic: [Solved] Convert a PNG image to a C++ Array
- Replies: 15
- Views: 33048
Re: Convert a PNG image to a C++ Array
Assuming you have a 28x28 grayscale file.png,
Code: Select all
convert file.png -define h:format=gray -depth 8 -size 28x28 grey28x28.h
- 2016-09-04T18:03:27-07:00
- Forum: Bugs
- Topic: Typo in "resize" usage documentation
- Replies: 2
- Views: 3915
Re: Typo in "resize" usage documentation
wierd -> weird, colorpsace -> colorspace, perhaps more.
- 2016-09-04T15:44:16-07:00
- Forum: Users
- Topic: Building with PNG Delegate problems
- Replies: 6
- Views: 15715
Re: Building with PNG Delegate problems
Here's what I do on Ubuntu 16:04: First, I cd into the libpng source directory and build libpng with configure --prefix=/home/glennrp/IM --with-libpng-prefix=IM make make install The first "--prefix" tells where to install libpng (in this case, an "IM" subdirectory in my home directory), and the ...
- 2016-08-28T17:03:38-07:00
- Forum: Users
- Topic: Correcting Alignment of an image series
- Replies: 11
- Views: 12538
Re: Correcting Alignment of an image series
Sadly, I don't have a method for detecting faces (but I'd like one). Funny you should ask. I just posted an image to Facebook a few minutes ago and was amused by the face recognition that it did: https://www.facebook.com/photo.php?fbid=10210653603682037&set=a.1022183400622.4334.1406326412&type=3 ...
- 2016-08-23T18:02:11-07:00
- Forum: Developers
- Topic: Please port OrderedPosterizeImage to IM7
- Replies: 0
- Views: 11171
Please port OrderedPosterizeImage to IM7
The OrderedPosterizeImageChannel method has not been ported from IM6 to IM7, so IM7 falls back on the original bi-level OrderedDitherImage method. Given a black-to-white gradient image, compare IM-7.0.2-9 magick gradient.png -ordered-dither o8x8,6 od_o8x8_6_im7.png which has only black or white ...
- 2016-08-12T13:48:41-07:00
- Forum: Bugs
- Topic: bug when using --with-quantum-depth=32
- Replies: 13
- Views: 12667
Re: bug when using --with-quantum-depth=32
I expect to fix this bug sometime.
- 2016-08-08T17:12:13-07:00
- Forum: Users
- Topic: Selected conversion from PNG to TXT
- Replies: 12
- Views: 11568
Re: Selected conversion from PNG to TXT
To get a list of the white pixels:
Code: Select all
magick image.png txt:- | grep white
- 2016-08-01T13:59:38-07:00
- Forum: Bugs
- Topic: Colortable bug w alpha channel image
- Replies: 9
- Views: 10239
Re: Colortable bug w alpha channel image
Well, for starters, you only have 13293 different RGBA pixels present, so "-colors 65535" should have no effect, if things are working properly: glenn.rp> convert CatHead_150x150.png cathead.txt glenn.rp> sort -u cathead.txt | wc 13294 39880 645121 It has always bothered me that "-colors N" doesn't ...