How do I make background transparent?

[c5c5]

Greetings,

I have a gif image that I would like to make the white bg transparent. How do I do this in Image Majick?

Thanks!

[fmw42]

convert input.gif -transparent white output.gif

assuming the background is pure 100% white

[c5c5]

Thank you. I will see if it works.

[anthony]

For more difficult background to transparency conversions..
Transparency Masking an Image
http://imagemagick.org/Usage/channels/#mask_creation

[Oleg]

convert input.gif -transparent white output.gif

assuming the background is pure 100% white

I have this error when running this command :



What is the matter?

May be I have installed a wrong version of ImageMagick ?

[Bonzo]

Can not read Russian but assume that the problem is that the convert.exe that is being used is the one built into Windows not IM the convert.exe

I think the work around is to rename the IM convert.exe to somethng like IM_convert.exe and use IM_convert instead of convert in your camand. I wonder if you could add the path to the IM convert comand e.g. c:/program files/imagemagick folder/convert

[Oleg]

Can not read Russian

I can translate (from Russian) texts into my error window (above) :

Window title : "Application error".

Text after red cross : "Application initialization error (0xc0150002). Press OK to close application".

but assume that the problem is that the convert.exe that is being used is the one built into Windows not IM the convert.exe

No, it is not.

I run my command (convert.exe with parameters) from "Far manager" (a file manager like Norton commander) in curent folder C:\ImageMagick>