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Posted on 22/02/10 07:39:02 AM |
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dprangan@yahoo.co.in
* Posts: 24 Reply |
"Dither" definition
In books on the subject I often come across the word dither. I know the normal meaning as given in dictionaries. What does it convey in Photoshop. I would like to know its impact on an image. If possible an example would be very much appreciated. Rangan D P |
Posted on 22/02/10 09:32:46 AM |
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Steve Caplin
Administrator Posts: 7072 Reply  |
Re: "Dither" definition
This is a technique that was used when computers could only display 256 colours. Colour photographs would be converted to show just a few colours, but the regular pattern of dots would be distracting. It looked better if images were 'dithered' - producing a more random pattern - which made colour look more convincing. These days, we only need to think about dithering images when we're deliberately reducing the number of colours, such as in an animated GIF. |
Posted on 23/02/10 11:02:55 AM |
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dprangan@yahoo.co.in
* Posts: 24 Reply |
Re: "Dither" definition
Respected Administrator, I very much appreciate your response. Now I can make some sense of the term so far as photoshop is concerned. Have been reading your book. Would work on the examples to hone in my skill. Still have a minor niggle. Photoshop takes quite some time to open. When it shows plug ins initially, it seems to stop literally for some time. Is it because of the numerous filters I have added. Any ideas to make it respond faster would be appreciated. Ra ngan D P |