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Some thumbnails become negative
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Description

Original file from: http://upload.wikimedia.org/wikipedia/commons/6/6a/Jan_hoet.jpg (looks fine for me)

Some thumbnails (for now I could only find [[commons:File:Jan_hoet.jpg]] are negative.

Extracted EXIF info with Apple Preview:
{

ColorModel = CMYK;
DPIHeight = 300;
DPIWidth = 300;
Depth = 8;
Orientation = 1;
PixelHeight = 1299;
PixelWidth = 880;
"{Exif}" =     {
    ColorSpace = 65535;
    PixelXDimension = 880;
    PixelYDimension = 1299;
};
"{JFIF}" =     {
    DensityUnit = 1;
    JFIFVersion =         (
        1,
        2
    );
    XDensity = 300;
    YDensity = 300;
};
"{TIFF}" =     {
    Compression = 1;
    DateTime = "2010:07:03 20:26:34";
    Orientation = 1;
    PhotometricInterpretation = 5;
    ResolutionUnit = 2;
    Software = "Adobe Photoshop CS3 Windows";
    XResolution = 300;
    YResolution = 300;
};

}

Extracted Metdata by MediaWiki:

Metadata

Width 2,121
Height 3,132
Compression scheme Uncompressed
Pixel composition 5
Orientation Normal
Number of components 4
Horizontal resolution 300 dpi
Vertical resolution 300 dpi
Data arrangement chunky format
Software used Adobe Photoshop CS3 Windows
File change date and time 20:26, 3 July 2010
Color space 65535


Version: 1.17.x
Severity: normal
URL: http://commons.wikimedia.org/wiki/File:Jan_hoet.jpg

Attached:

Jan_hoet.jpg (1×880 px, 333 KB)

Details

Reference
bz27635

Event Timeline

bzimport raised the priority of this task from to Medium.Nov 21 2014, 11:29 PM
bzimport set Reference to bz27635.
bzimport added a subscriber: Unknown Object (MLST).

Both affected images are:
*CMYK images
*Have the exif color space tag set to uncalibrated (65535=uncalibrated)

Thus, sounds like upstream issue/dupe of bug 24854.

In the mean time, maybe convert to rgb, and re-upload.

  • This bug has been marked as a duplicate of bug 24854 ***