Search found 9 matches

by vincent.tschanz
2019-11-20T08:01:07-07:00
Forum: Bugs
Topic: batch convert to wepb produces an animation despite +adjoin
Replies: 2
Views: 3050

batch convert to wepb produces an animation despite +adjoin

Link to the original question thread Macos 10.14.16, ImageMagick 7.0.9-5 Q16 x86_64 2019-11-18, installed with Homebrew Step to reproduce : generate multiple PNGs for i in {1..9}; do magick -background black -fill grey -font impact -size 320x240 -pointsize 96 -gravity center label:$i out-$i.png; do...
by vincent.tschanz
2019-11-20T07:49:22-07:00
Forum: Users
Topic: batch convert to webp, without making an animation
Replies: 6
Views: 3589

Re: batch convert to webp, without making an animation

Code: Select all

identify out-1.webp 
out-1.webp WEBP 320x240 320x240+0+0 8-bit sRGB 3366B 0.000u 0:00.000
identify out-2.webp 
out-2.webp WEBP 320x240 320x240+0+0 8-bit sRGB 460B 0.000u 0:00.000
the first one is way bigger as it's an animation
by vincent.tschanz
2019-11-20T07:39:36-07:00
Forum: Users
Topic: batch convert to webp, without making an animation
Replies: 6
Views: 3589

Re: batch convert to webp, without making an animation

Same problem with the magick command. I guess it's a bug specific to the Homebrew version. Any idea where I should report this ?
by vincent.tschanz
2019-11-20T06:13:36-07:00
Forum: Users
Topic: batch convert to webp, without making an animation
Replies: 6
Views: 3589

Re: batch convert to webp, without making an animation

Thanks!

when adding +adjoin I do indeed get the same number of output file as I have inputs. However the first generated images still contain all the images as an animations, the following are still images.

Is this a bug? Can someone reproduce?
by vincent.tschanz
2019-11-20T02:37:22-07:00
Forum: Users
Topic: Improving quality of 'convert -define jpeg:extent=200KB'
Replies: 2
Views: 2810

Re: Improving quality of 'convert -define jpeg:extent=200KB'

The artifact you are talking about is due to the Chroma-subsampling. (check wikipedia to know more about that) IM is probably using a 4:2:0 subsampling (ugly with pure red or blue colors) where Photoshop is keeping it at 4:4:4 you can force IM to keep 4:4:4 with -sampling-factor 1x1 https://www.imag...
by vincent.tschanz
2019-11-20T02:30:44-07:00
Forum: Users
Topic: batch convert to webp, without making an animation
Replies: 6
Views: 3589

batch convert to webp, without making an animation

I want to convert multiple PNGs to WEBPs, for that I use : convert *.png -quality 90% -set filename:basename "%[basename]" "%[filename:basename]".webp Instead of writing one webp per png, I get one webp file with all the images as an animation. I'm pretty sure I used a similar command in the past wi...
by vincent.tschanz
2019-10-14T00:19:35-07:00
Forum: Users
Topic: Export layers to individual psd file keeping guides
Replies: 3
Views: 4025

Re: Export layers to individual psd file keeping guides

I'm using ImageMagick 7.0.8-68 on Macos 10.14.6 16GB RAM I see no error message when I run convert -dispose Background file.psb -layers coalesce -set filename:layers %l %[filename:layers].psd But nothing is written The 'magick' process go up to 14GB, then stabilize at 12.2GB until the end. Edit: I g...
by vincent.tschanz
2019-10-11T01:14:24-07:00
Forum: Users
Topic: Export layers to individual psd file keeping guides
Replies: 3
Views: 4025

Export layers to individual psd file keeping guides

I have a huge PSB (large photoshop document format) containing hundred of layers and guides. I use the following to export each layer to a png using the layer name as filename and keeping the document size : convert -dispose Background huge-file.psb -layers coalesce -set filename:layers %l %[filenam...