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  1. Nuxeo Platform
  2. NXP-20988

Fix handling of multilayered pictures

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Not A Bug
    • Affects Version/s: 7.10
    • Fix Version/s: 7.10-HF18, 8.10
    • Component/s: Preview

      Description

      Currently the commands defined here only converts the first layer of multilayered pictures.
      This is probably due to the fact most pictures contain a flattened version on the layer 0.
      It seems some files have an incompatible layer 0 with the -flatten options and thus only a part of the picture is converted (see attached compressed psd file), the background color is applied.

      Workaround: instead of using the default

      <command name="jpegResizer" enabled="true">
            <commandLine>convert</commandLine>
            <parameterString>-define registry:temporary-path=#{nuxeo.tmp.dir} -quiet -background white -flatten -depth #{targetDepth} #{inputFilePath}[0] jpg:- | convert - -resize #{targetWidth}x#{targetHeight} #{outputFilePath}</parameterString>
            <winParameterString>-define registry:temporary-path=#{nuxeo.tmp.dir} -quiet -background white -flatten -depth #{targetDepth} #{inputFilePath}[0] -resize #{targetWidth}x#{targetHeight} #{outputFilePath}</winParameterString>
            <installationDirective>You need to install ImageMagick.</installationDirective>
          </command>
      

      One could use the following:

          <command name="jpegResizer" enabled="true">
            <commandLine>convert</commandLine>
            <parameterString>-layers merge -define registry:temporary-path=#{java.io.tmpdir} -quiet -background white -flatten -depth #{targetDepth} #{inputFilePath} jpg:- | convert - -resize #{targetWidth}x#{targetHeight} #{outputFilePath}</parameterString>
            <winParameterString>-layers merge -define registry:temporary-path=#{java.io.tmpdir} -quiet -background white -flatten -depth #{targetDepth} #{inputFilePath} -resize #{targetWidth}x#{targetHeight} #{outputFilePath}</winParameterString>
            <installationDirective>You need to install ImageMagick.</installationDirective>
          </command>
      

      This results in proper generation of thumbnails and preview for example at the expense of added computing but should work with any multilayered file.

        Attachments

        1. psdFile.7z
          10.54 MB
          Frantz Fischer
        2. speedTest.sh
          0.5 kB
          Frantz Fischer

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