Lighten area of a image
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I have a app which places a watermark (text) on an image and saves this back to a file. What I would like to do is lighten a rectangle area behind the text so the text is clearer. Can anyone point me to articles which would show how to lighten an area. I found many which show how to lighten/darken the image (bitmap) but noe for an area.
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I have a app which places a watermark (text) on an image and saves this back to a file. What I would like to do is lighten a rectangle area behind the text so the text is clearer. Can anyone point me to articles which would show how to lighten an area. I found many which show how to lighten/darken the image (bitmap) but noe for an area.
My image processing articles show you how to do that, you'd just have to change the code to only iterate over the pixels you want to lighten
Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.
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I have a app which places a watermark (text) on an image and saves this back to a file. What I would like to do is lighten a rectangle area behind the text so the text is clearer. Can anyone point me to articles which would show how to lighten an area. I found many which show how to lighten/darken the image (bitmap) but noe for an area.
- you can lighten text , so the text is clearer. 2) you can make two pictures (one is lighten, the other is darken) when mouse over the places , just change the pictures. 3) of course, you can draw a picture, by different way.(Pixel Zoom, different background color.....)