ACDSee Pro 3

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Bug in JPEG decoder

(1 post)
  • Started by pastor
  • Started on October 22, 2009 - 09:45 AM (1 month ago)

  • pastor
    Member

    Hi.

    I've found that modern ACDsee versions have a problem when decoding certain JPEG files. If jpeg is encoded using ACDsee's options "Color component sampling" "2:1 Horisontal" or "2:1 Vertical" then result is displayed in ACDsee with obvious aliasing on red-to-black transitions. If jpeg is encoded in 3rd party software with analogous options (4:2:2 and so on) then it is wrongly decoded in ACDsee as well. Old ACDsee 5.0 does not have the bug.

    Attached Image:

    I made a screen of the bug, see attachment. Top part - bug, decoded with ACDsee Pro, lower part - no bug, decoded with ACDsee 5.

    Attached Files

    1. acdsee_decoder_bug.png
    Posted On October 22, 2009 - 09:45 AM (1 month ago) (Permalink to this post)

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