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  1. Smart Object

    Reducing artifacts in flat colours

    OK guys, here's another type of noise problem I'm not sure how to sort. This is an image I've scanned myself at 300dpi with unsharp mask filter on and descreen set to max my software has (175 lpi). The graphics at the top and right are meant to be solid colours, but as you can see there's...
  2. Smart Object

    Reducing artifacts in flat colours

    As far as I understood it the warning triangle (when you select a colour) was to warn that the colour was out of printing range - ie you can use this colour on screen but don't expect it to print as bright (it then offers you the next best alternative printable colour if you want it). The...
  3. Smart Object

    Reducing artifacts in flat colours

    'Jpegging' is a sort of lazy slang term for the visual noise, though it's more used for when pictures go really blocky.
  4. Smart Object

    Reducing artifacts in flat colours

    I thought 'web colours' were for Gifs only? And not really needed since monitors displayed more than 256cols?
  5. Smart Object

    Reducing artifacts in flat colours

    They're Jpeg artifacts - ie a byproduct of compressing an image too heavily when saving as a jpeg, or sometimes if an image has been saved as a jpeg multiple times. The easiest way to avoid is to save your image at as high a Jpeg quality as possible, and do it only once. If the forum...
  6. Smart Object

    Reducing artifacts in flat colours

    Hey SeniorS that looks pretty spot on! Please can you explain the steps? At what point do you hold shift? I'm not sure how you've achieved it?
  7. Smart Object

    Reducing artifacts in flat colours

    Hoogleman - thanks - this worked pretty well (once I did it for each colour) but still some artifacts though. When I did the Select Colour Range on the red and it gave me the black and white image (based on the red) - is there a way to adjust these levels? I could see the jpegging was there in...
  8. Smart Object

    Reducing artifacts in flat colours

    I'm pretty experienced in Photoshop, but can't work out how to do something so simple. In images where there's flat colour (eg book & cd covers), how do you easily get rid of any unwanted noise, without making edges blurry, or resizing down? Take this image below for example. It's essentially...
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