Search found 4 matches

by JohnShen00
2016-12-13T10:59:27-07:00
Forum: Users
Topic: why annoted text backgound color must be opposite to image backgound color
Replies: 7
Views: 4342

Re: why annoted text backgound color must be opposite to image backgound color

Thanks a lot for your reply. Then how can I add white background and black text in CMYK? -background cmyk(0,0,0,0) -fill cmyk(0,0,0,100) Seems doesn't work for me. I can't quite tell exactly what you're trying to do, but maybe you should be using "-undercolor" instead of "-background" there. Good ...
by JohnShen00
2016-12-13T10:52:26-07:00
Forum: Users
Topic: why annoted text backgound color must be opposite to image backgound color
Replies: 7
Views: 4342

Re: why annoted text backgound color must be opposite to image backgound color

I would suggest you convert your CMYK images to sRGB before trying to process. Some commands in IM expect RGB images and do not work properly for CMYK images. Thanks for your suggestion. I'm working on a project which processes images for advertisement printing. Most of our images are CMYK jpeg ...
by JohnShen00
2016-12-13T10:32:13-07:00
Forum: Users
Topic: why annoted text backgound color must be opposite to image backgound color
Replies: 7
Views: 4342

Re: why annoted text backgound color must be opposite to image backgound color

You are using colour names with CMYK colorspace. But colour names give values for RGB colorspace. When used in CMK, you need the "opposite" names. Thanks a lot for your reply. Then how can I add white background and black text in CMYK? -background cmyk(0,0,0,0) -fill cmyk(0,0,0,100) Seems doesn't ...
by JohnShen00
2016-12-13T02:07:58-07:00
Forum: Users
Topic: why annoted text backgound color must be opposite to image backgound color
Replies: 7
Views: 4342

why annoted text backgound color must be opposite to image backgound color

My ImageMagick version : 6.3.9-Q8 OS : Windows 7 Hello, I was trying to annotate a text to an image, but I found that must have text background color opposite to the image background color, otherwise the text won't show. [Problem Description] Say I get two images, one named "bg_white.jpg" (image ...