Remove green background

[sooN]

I used the -b white and the commands shown in your example, I actually believe it doesn't work properly on my side.

There's an example photo : http://image.noelshack.com/fichiers/201 ... cn1299.jpg ( too large for this website )

[fmw42]

I want your input, so I can try to process it. This forum does not permit image upload. You have to upload elsewhere and put the URL here as you have done.

[sooN]

Yeah, I don't know what happened with my brain, I wanted to give you the original but...

There it is : http://image.noelshack.com/fichiers/201 ... cn1299.jpg

[fmw42]

What you saw as gray was the transparent regions.

Here is what I get:

Input:


White background:

Code: Select all

greenscreen -b white 1556907464-dscn1299.jpg 1556907464-dscn1299_result.jpg

Default Transparent background (which looks gray if viewed by itself):

Code: Select all

greenscreen 1556907464-dscn1299.jpg 1556907464-dscn1299_result.png

or

greenscreen -b none 1556907464-dscn1299.jpg 1556907464-dscn1299_result.png

[sooN]

Yeah, so it doesn't work on my server, I can't tell why, I either have a fully white picture or this if I switch << -b white >> to << -b none >> :

[fmw42]

What is your Imagemagick version and date of the version and platform/OS?

If on IM 6, then

Code: Select all

convert -version 

or if IM 7, then

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magick -version

A guess is that your server is too old for the connected components processing. I can make a version that does not use that, if we find that is the case.

[fmw42]

Download the script again. I made a change and use -a 0. That will disable the connected components part of the script.

Code: Select all

greenscreen -a 0 -b none 1556907464-dscn1299.jpg 1556907464-dscn1299_result.png

or

greenscreen -a 0 -b white 1556907464-dscn1299.jpg 1556907464-dscn1299_result.jpg

[sooN]

I can't tell which version is installed on my server but I updated your script and did that << greenscreen -a 0 -b white >> and there's no change on the image.

Edit: It works now with << greenscreen -t 22 -a 0 -b white >>. I need to try this more but it looks fine for at least one image.

https://paste2.org/ULmNC4Kh

[fmw42]

Your version 6.8.9.9 is prior to -connected-components. I would suggest that you upgrade if possible. That version is about 140 versions old.

[sooN]

Sadly I can't upgrade it, I have like the a very basic hosting, i'm glad ImageMagick is even installed.