Last modified: 2013-04-02 00:07:15 UTC
I am unable to download the larger versions of a file. The file in question is Van Gogh's "De slaapkamer". I am only able to download the two smallest versions: 1024px, and 2048px. All other sizes result in the following error: "Error generating thumbnail Error creating thumbnail:" When attempting to download the full resolution file, the top 100 or so rows of pixels will download, but then the rest of the image will be corrupt and display as grey. http://upload.wikimedia.org/wikipedia/commons/7/76/Vincent_van_Gogh_-_De_slaapkamer_-_Google_Art_Project.jpg I have received the same errors using Safari, Chrome, and Firefox, on Apple Macs running 10.7.
Note, it's a 700 MPx JPG, not interlaced.
I'm not sure what this bug is about exactly, do you expect the thumbs to work? Surely you can't expect the original to work on all browsers (or any browser, maybe): it's a valid JPG and opens perfectly and very quickly locally (I tried gwenview which is not even the smartest). $ curl http://upload.wikimedia.org/wikipedia/commons/7/76/Vincent_van_Gogh_-_De_slaapkamer_-_Google_Art_Project.jpg | identify -verbose - % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 252M 100 252M 0 0 2920k 0 0:01:28 0:01:28 --:--:-- 6192k Image: /tmp/magick-AI40BGIa Base filename: - Format: JPEG (Joint Photographic Experts Group JFIF format) Class: DirectClass Geometry: 30000x23803+0+0 Resolution: 72x72 Print size: 416.667x330.597 Units: PixelsPerInch Type: TrueColor Endianess: Undefined Colorspace: RGB Depth: 8-bit Channel depth: red: 8-bit green: 8-bit blue: 8-bit Channel statistics: Red: min: 0 (0) max: 255 (1) mean: 139.916 (0.54869) standard deviation: 33.2939 (0.130564) kurtosis: 2.8131 skewness: -1.35989 Green: min: 0 (0) max: 255 (1) mean: 125.592 (0.492517) standard deviation: 36.2824 (0.142284) kurtosis: 0.483278 skewness: -0.433469 Blue: min: 0 (0) max: 255 (1) mean: 74.5954 (0.292531) standard deviation: 55.0251 (0.215785) kurtosis: -0.878388 skewness: 0.481644 Image statistics: Overall: min: 0 (0) max: 255 (1) mean: 113.368 (0.444579) standard deviation: 42.6328 (0.167187) kurtosis: 2.02482 skewness: -1.0497 Rendering intent: Undefined Interlace: None Background color: white Border color: rgb(223,223,223) Matte color: grey74 Transparent color: black Compose: Over Page geometry: 30000x23803+0+0 Dispose: Undefined Iterations: 0 Compression: JPEG Quality: 94 Orientation: TopLeft Properties: date:create: 2013-01-18T09:24:26+00:00 date:modify: 2013-01-18T09:24:26+00:00 exif:BitsPerSample: 8, 8, 8 exif:ColorSpace: 65535 exif:Compression: 32946 exif:DateTime: 2012:11:01 15:58:16 exif:ExifImageLength: 23803 exif:ExifImageWidth: 30000 exif:ExifOffset: 256 exif:ImageLength: 35384 exif:ImageWidth: 44596 exif:JPEGInterchangeFormat: 394 exif:JPEGInterchangeFormatLength: 6182 exif:Orientation: 1 exif:PhotometricInterpretation: 2 exif:PlanarConfiguration: 1 exif:ResolutionUnit: 2 exif:SamplesPerPixel: 3 exif:Software: Adobe Photoshop CS5.1 Windows exif:XResolution: 720000/10000 exif:YResolution: 720000/10000 jpeg:colorspace: 2 jpeg:sampling-factor: 1x1,1x1,1x1 signature: 71e6eaf237629f0b701a0f3bb88007f9aab28f8c648c64f242519930854926a8 Profiles: Profile-8bim: 8294 bytes Profile-exif: 6582 bytes Profile-xmp: 3506 bytes Artifacts: verbose: true Tainted: False Filesize: 264.6MBB Number pixels: 714.1MB Pixels per second: 17.42MB User time: 18.630u Elapsed time: 0:41.990 Version: ImageMagick 6.6.9-7 2012-08-17 Q16 http://www.imagemagick.org
See related bug https://bugzilla.wikimedia.org/show_bug.cgi?id=29967 ("Better support for viewing and downloading large files").
Slow, but WFM now.
