Legacy ImageMagick Discussions Archive

Hi,

I've updated my installation of imagemagick from 6.8.5 to 7.0.2 and noticed the output images are not elaborated the same way as before.
Starting from an aerial view I would run a conversion which filtered colors and added snow in some areas of the original image. Since recently the colors come out wrong (pink green).

result in 6.8.5:

result in 7.0.2

code:

Code: Select all

"ImageMagick-6.8.5-Q16\convert" tmp\INPUT_g2xpl_8_16_35680_40240.jpg -normalize -fuzz 14.0% -fill white -opaque #519556 -threshold 99% -fill black -colorize 5% -blur 0x1.0 -resize 1024x1024 tmp\INPUT_g2xpl_8_16_35680_40240.tga_mask_green.tga

"ImageMagick-6.8.5-Q16\convert" tmp\INPUT_g2xpl_8_16_35680_40240.jpg -normalize -fuzz 45.0% -fill white -opaque #f1f1d9 -threshold 99% -blur 0x0.8 -resize 1024x1024 tmp\INPUT_g2xpl_8_16_35680_40240.tga_mask_roads.tga

"ImageMagick-6.8.5-Q16\convert" tmp\INPUT_g2xpl_8_16_35680_40240.jpg -normalize -fuzz 15% -fill white -opaque 'rgb(50,40,40)' -threshold 99% -blur 0x1.0 -resize 1024x1024 tmp\INPUT_g2xpl_8_16_35680_40240.tga_mask_dark.tga

"ImageMagick-6.8.5-Q16\convert" tmp\INPUT_g2xpl_8_16_35680_40240.jpg -brightness-contrast 5 -blur 0x0.5 -resize 1024x1024 tmp\INPUT_g2xpl_8_16_35680_40240_0.tga

"ImageMagick-6.8.5-Q16\convert" -size 1024x1024^ canvas:white tmp\INPUT_g2xpl_8_16_35680_40240_0.tga tmp\INPUT_g2xpl_8_16_35680_40240.tga_mask_green.tga -composite tmp\INPUT_g2xpl_8_16_35680_40240_0.tga tmp\INPUT_g2xpl_8_16_35680_40240.tga_mask_roads.tga -composite tmp\INPUT_g2xpl_8_16_35680_40240_0.tga tmp\INPUT_g2xpl_8_16_35680_40240.tga_mask_dark.tga -composite tmp\city.jpg

Can you kindly please help debugging this?

Do you really run all those from the command line? If they are in a BAT file, the percentages % should be doubled %%.

IM 6.8.5.x was undergoing changes in colorspace and grayscale from linear to non-linear. So IM 6.8.5 is not trustworthy. See if the latest IM 6 behaves differently from the latest IM 7. If not, provide a simple command that can demonstrate the difference.

You have a lot of commands. Which command or commands produces the images presented? Can you provide one simple command and the resulting image that shows the problem.

Thanks for your replies.
The last command (see below) is the one causing the erratic result. All previous lines work fine.
I expected to be something to do with colour space, I'm just not familiar enough with recent developments of imagemagick to figure out what has changed:
what the code does in 6.8.5 is creating a white canvas and using three masks ([..]mask_green [..]mask_roads [..]mask_dark) to introduce this white canvas onto the original image INPUT_g2xpl_8_16_35680_40240_0.tga

Code: Select all

"ImageMagick-6.8.5-Q16\convert" -size 1024x1024^ canvas:white tmp\INPUT_g2xpl_8_16_35680_40240_0.tga tmp\INPUT_g2xpl_8_16_35680_40240.tga_mask_green.tga -composite tmp\INPUT_g2xpl_8_16_35680_40240_0.tga tmp\INPUT_g2xpl_8_16_35680_40240.tga_mask_roads.tga -composite tmp\INPUT_g2xpl_8_16_35680_40240_0.tga tmp\INPUT_g2xpl_8_16_35680_40240.tga_mask_dark.tga -composite tmp\city.jpg

I just tested it, 6.9.5-7 works absolutely fine.

p.s.
regarding % symbols I'll add double %% however a single % doesn't seem to be causing issues at the moment.

"ImageMagick-6.8.5-Q16\convert" -size 1024x1024^ canvas:white...

What is the caret ^ for? It's probably harmless, but I suggest you remove it.

Legacy ImageMagick Discussions Archive

output difference between 6.8.5 and 7.0.2

output difference between 6.8.5 and 7.0.2

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Re: output difference between 6.8.5 and 7.0.2

Re: output difference between 6.8.5 and 7.0.2

Re: output difference between 6.8.5 and 7.0.2