Search found 25563 matches

by fmw42
2019-10-07T14:48:02-07:00
Forum: Users
Topic: ImageMagick7 runs much slower than version6
Replies: 27
Views: 114095

Re: ImageMagick7 runs much slower than version6

It is slower in part because IM 7 is built with HDRI by default. You can recompile without HDRI and you can recompile with Q8 in place of the default Q16. With IM 7, use magick in place of convert. The issue may have been fixed simply by using a more current version of libpng or if the IM 7 has lcms...
by fmw42
2019-10-07T12:23:21-07:00
Forum: Users
Topic: Image looks different after removing transparent space and scaled
Replies: 45
Views: 227021

Re: Image looks different after removing transparent space and scaled

Did you try upgrading libpng? Did you try installing lcms? This is my command and result: convert b07s8dt2vc-large-front_image.png -resize 3500x3500^ b07s8dt2vc-large-front_image_resize.png http://www.fmwconcepts.com/misc_tests/b07s8dt2vc-large-front_image_resize.png If this looks correct, then try ...
by fmw42
2019-10-05T20:50:20-07:00
Forum: Users
Topic: Image looks different after removing transparent space and scaled
Replies: 45
Views: 227021

Re: Image looks different after removing transparent space and scaled

Your Imagemagick is ancient by version number, though currently patched supposedly on 9/29/2019. So just a couple of weeks ago. But Linux distributions often only patch for security. So it is possible there is a bug or a missing update. But I would start with upgrading your libpng, if you can. The v...
by fmw42
2019-10-05T18:22:13-07:00
Forum: Bugs
Topic: implode region in IM 7
Replies: 5
Views: 49457

Re: implode region in IM 7

These are equivalent. (Note proper IM syntax -- read the input first) convert flower.jpg -region '150x150+50+50' -implode 1 +region out.jpg convert flower.jpg \ \( -clone 0 -crop '150x150+50+50' +repage -implode 1 \) \ -geometry +50+50 -composite result6.jpg magick flower.jpg \ \( -clone 0 -crop '15...
by fmw42
2019-10-05T17:33:00-07:00
Forum: Users
Topic: How to add to image a text with some transparency; optionally with some noise?
Replies: 5
Views: 9572

Re: How to add to image a text with some transparency; optionally with some noise?

As snibgo has indicated, use a partially transparent color. You can use hex or rgb definitions. See https://imagemagick.org/script/color.php
by fmw42
2019-10-05T17:30:52-07:00
Forum: Bugs
Topic: implode region in IM 7
Replies: 5
Views: 49457

Re: implode region in IM 7

Thanks. Is there a workaround other than compositing with a mask image?
by fmw42
2019-10-05T13:42:13-07:00
Forum: Users
Topic: Image looks different after removing transparent space and scaled
Replies: 45
Views: 227021

Re: Image looks different after removing transparent space and scaled

I cannot see any visual difference when I use convert img.png -resize 4500x5400! img_scale6.png magick img.png -resize 4500x5400! img_scale7.png Between these two nor between either and the original IM 6.9.10.67 and 7.0.8.67 Mac OSX with libpng 1.6.36 Use convert -list format to check which version ...
by fmw42
2019-10-05T10:43:54-07:00
Forum: Users
Topic: Implode region change in IM 7
Replies: 1
Views: 5387

Re: Implode region change in IM 7

I can confirm this with IM 6.9.10.68 and IM 7.0.8.68 Q16 Mac OSX.

Post this to the bugs forum.
by fmw42
2019-10-05T10:38:53-07:00
Forum: Users
Topic: choose starting frame (different than frame 0) for a GIF
Replies: 4
Views: 10423

Re: choose starting frame (different than frame 0) for a GIF

What about

Code: Select all

magick animate movie.gif[1--1]
to start with the second frame (skip frame 0) and go the last
by fmw42
2019-10-04T22:02:25-07:00
Forum: Users
Topic: Why am I getting colors for 4 channels from a png image?
Replies: 1
Views: 4803

Re: Why am I getting colors for 4 channels from a png image?

No they can have 4 if you count the alpha channel. But you have 12 hex values. So that means you have a 3 channel 16 bit image. Your imagemagick is likely Q16 (default) which means 16-bit compile. So you can get that kind of value for colors. See https://imagemagick.org/script/color.php
by fmw42
2019-10-04T20:29:06-07:00
Forum: Users
Topic: Image looks different after removing transparent space and scaled
Replies: 45
Views: 227021

Re: Image looks different after removing transparent space and scaled

What scaling? Your original post command line has no scaling! What was your exact command? Your PNG version libpng 1.6.28 is a bit old. You might consider upgrading.
by fmw42
2019-10-04T18:10:03-07:00
Forum: Users
Topic: How to correctly resize a .ico file without blurring it
Replies: 4
Views: 7407

Re: How to correctly resize a .ico file without blurring it

Try this (unix syntax) convert input.ico -delete 1--1 \ \( -clone 0 -resize 16x16 \) \ \( -clone 0 -resize 32x32 \) \ \( -clone 0 -resize 48x48 \) \ \( -clone 0 -resize 64x64 \) \ -delete 0 -background none output.ico or (windows syntax) convert input.ico -delete 1--1 ^ ( -clone 0 -resize 16x16 ) ^ ...
by fmw42
2019-10-04T16:41:23-07:00
Forum: Users
Topic: Image looks different after removing transparent space and scaled
Replies: 45
Views: 227021

Re: Image looks different after removing transparent space and scaled

Your Imagemagick is ancient, though currently patched. But Linux distributions often only patch for security. So it is possible there is a bug. I saw no difference.

Try

convert -list format

and see what version you have for PNG.
by fmw42
2019-10-04T16:23:20-07:00
Forum: Users
Topic: How to correctly resize a .ico file without blurring it
Replies: 4
Views: 7407

Re: How to correctly resize a .ico file without blurring it

try

Code: Select all

convert input.ico -sample 64x64 output.ico
Proper syntax reads the input first.
by fmw42
2019-10-04T12:30:14-07:00
Forum: Users
Topic: Image looks different after removing transparent space and scaled
Replies: 45
Views: 227021

Re: Image looks different after removing transparent space and scaled

This command works fine for me with no color change using ImageMagick 6.9.10.67 Q16 Mac OSX with libpng @1.6.36. convert shirt.png -trim +repage -bordercolor none -border 5 shirt3.png My guess is that it has to do with the version of libpng you have installed or with the version of ImageMagick. What...