Search found 25563 matches
- 2019-08-21T08:51:50-07:00
- Forum: Digital Image Processing
- Topic: Bicubic (Catrom) image downsampling without antialiasing?
- Replies: 7
- Views: 168033
Re: Bicubic (Catrom) image downsampling without antialiasing?
I suspect that the ImageMagick resize is using a different method that does a better job of dealing with artifacts. Sorry, I do not know what algorithm/code Matlab is using. See https://imagemagick.org/Usage/filter/ https://imagemagick.org/Usage/filter/nicolas/ You can control the filter settings wi...
- 2019-08-20T18:25:46-07:00
- Forum: Bugs
- Topic: [RESOLVED] possible bug with MPC IM 6.9.10.60 Q16 Mac OSX Sierra
- Replies: 2
- Views: 73345
Re: possible bug with MPC IM 6.9.10.60 Q16 Mac OSX Sierra
This seems to be fixed and does not Abort trap in IM 6.9.10.66
- 2019-08-20T18:24:11-07:00
- Forum: Bugs
- Topic: Possible bug IM 7.0.8.60 with resize, attenuate and noise
- Replies: 9
- Views: 96482
Re: Possible bug IM 7.0.8.60 with resize, attenuate and noise
This still fails in IM 7.0.8.61 Q16 Mac OSX.
- 2019-08-20T11:26:26-07:00
- Forum: Users
- Topic: reproducing Spherical Distortion Map
- Replies: 9
- Views: 15625
Re: reproducing Spherical Distortion Map
On Windows, best to use double quotes. Try
This works fine for me on Mac OSX.
Code: Select all
convert -size 1500x1500 xc: -channel R -fx "yy=(j+.5)/h-.5; (i/w-.5)/(sqrt(1-4*yy^2))+.5" -separate +channel sphere_lut.png
- 2019-08-20T11:22:49-07:00
- Forum: Digital Image Processing
- Topic: Bicubic (Catrom) image downsampling without antialiasing?
- Replies: 7
- Views: 168033
Re: Bicubic (Catrom) image downsampling without antialiasing?
Try
Code: Select all
convert image_file -filter catrom -resize 160x120 -background black -gravity center -extent 160x120 destinFileName
- 2019-08-20T09:29:50-07:00
- Forum: Digital Image Processing
- Topic: Bicubic (Catrom) image downsampling without antialiasing?
- Replies: 7
- Views: 168033
Re: Bicubic (Catrom) image downsampling without antialiasing?
Anthony would have to look at this whenever he gets online. He was the developer. Unfortunately, he rarely contributes here at this time. What antialiasing step? I was not aware of any. This is the code from pixel.c static inline void CatromWeights(const MagickRealType x, MagickRealType (*weights)[4...
- 2019-08-20T09:22:40-07:00
- Forum: Bugs
- Topic: Change image color
- Replies: 14
- Views: 151614
Re: Change image color
I get your same bad result on IM 7.0.8.61 Q16 HDRI Mac OSX with the following command: magick -respect-parenthesis \ \( 6214291349a70-af1a-431a-8186-0ced1d8e8c4d.png -fuzz 50% -fill "rgb(225,225,225)" -opaque black -quality 20 \) \ \( -clone 0 -background "rgb(53,63,124)" -shadow...
- 2019-08-19T09:55:22-07:00
- Forum: Bugs
- Topic: Change image color
- Replies: 14
- Views: 151614
Re: Change image color
Please show your input and output images and the command you used. Also what is the exact version of ImageMagick 7.0.8.x If this was the last command I showed, then it seems to work fine for me on IM 7.0.8.61 Q16 Mac OSX. http://www.fmwconcepts.com/misc_tests/colorize/input_text.png Unix syntax: mag...
- 2019-08-18T22:10:24-07:00
- Forum: Users
- Topic: Combining multiple animated gifs into a single longer animation - Using too much disk space
- Replies: 6
- Views: 12365
Re: Combining multiple animated gifs into a single longer animation - Using too much disk space
What are the dimensions of the gif frames in width and height. Have you computed 277 images * 30 frames/image * Width * Height * 4 bytes/pixel and double it for input and output? Is that result larger or smaller than your RAM.
Sorry I am not an expert on resource allocations and mapping to disk.
Sorry I am not an expert on resource allocations and mapping to disk.
- 2019-08-18T21:17:12-07:00
- Forum: Users
- Topic: Combining multiple animated gifs into a single longer animation - Using too much disk space
- Replies: 6
- Views: 12365
Re: Combining multiple animated gifs into a single longer animation - Using too much disk space
Edit you policy.xml file to permit more RAM or map to disk. See https://imagemagick.org/script/resources.php https://imagemagick.org/source/policy.xml You can use magick -list resource to see what your allocation is. When using wild cards for input, be sure your files are listed alphabetically the w...
- 2019-08-18T15:27:18-07:00
- Forum: PerlMagick
- Topic: Select rectangular region -- Clone & Crop?
- Replies: 1
- Views: 70728
Re: Select rectangular region -- Clone & Crop?
Cloning is not needed in command line. I am not sure why it would be needed in PerlMagick if cropping is all you want to do. The actual input file is not changed by reading it into memory. So you can crop it without affecting the disk file. You can just crop the original and save to a new disk file....
- 2019-08-17T10:33:08-07:00
- Forum: Developers
- Topic: How to reduce number of the commands lines
- Replies: 3
- Views: 73327
Re: How to reduce number of the commands lines
See parenthesis processing https://imagemagick.org/Usage/basics/#parenthesis convert tmp2.png -background transparent -extent 600x600 mask1.png -composite \ \( mask3.png tmp3.png -geometry +0+350 -compose Dst_Over -composite \ -fuzz 10% -transparent black \) -composite mask3.png \ -composite masked-...
- 2019-08-16T18:54:01-07:00
- Forum: Fred's Scripts
- Topic: how to have emboss and deboss effect
- Replies: 10
- Views: 190829
Re: how to have emboss and deboss effect
Try this using the other mode in my emboss script. The first line extracts the alpha channel from your second example image, since the script needs the image to be processed to be black and white. The image must have an alpha channel that is not fully opaque and corresponds appropriately to the imag...
- 2019-08-16T10:29:07-07:00
- Forum: Fred's Scripts
- Topic: how to have emboss and deboss effect
- Replies: 10
- Views: 190829
Re: how to have emboss and deboss effect
I do not think my script will work well for you. Sorry.
- 2019-08-16T09:48:30-07:00
- Forum: Users
- Topic: User guide
- Replies: 6
- Views: 15150
Re: User guide
The images are created dynamically. So I am not sure you will get the images if you download it. You will have to try.