Version: (using KDE KDE 3.5.8) OS: Linux Digikam/showfot can't read Image Size and Bit Depth of PNGs generated by UFRAW (latest stable = 0.13) Krita, Gimp have no problems showing size and color depth of the same file. Apparently digikam image processing / editing does occur properly at 16bits, althought I'm not sure... Example: for this image: http://arielpablo.com.ar/unprotected-files/DSC_0006_digikam.png Digikam 0.9.2 and 0.9.3SVN (today) display: Dimensions: unknown Compression: unavailable bit depth: unavailable color mode: unavailable After editing and saving, the problem persists when reopening the edited image with digikam/showfoto
Which version of exiv2 do you use (see the Help/About digikam/About)? What does exiv2 DSC_0006_digikam.png show?
Arnd, Here, this is not the fault to Exiv2, but KDE API and especially KFileMetaInfo... Look in the code, at digikam/libs/imageproperties/imagepropertiestab.cpp, line 468 KFileMetaInfo do not search Exif info in PNG for that. It scan whole file to find PNG Chunk witch include image informations (PNG ImageHeader Tags : http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/PNG.html#ImageHeader). It's completly different than the way used by Exiv2 witch do not know (yet) this chunk, but only try to find the text chunk used to embed Exif informations as a byte-array (same for IPTC and XMP). Of course i can patch Exiv2 for that... But this is not the real problem here. Now try to parse this image with exiftool like this : exiftool -g DSC_0006_digikam.png ======== DSC_0006_digikam.png ---- ExifTool ---- ExifTool Version Number : 7.00 Warning : Bad NikonPreview directory ---- File ---- File Name : DSC_0006_digikam.png Directory : . File Size : 3 MB File Modification Date/Time : 2007:11:19 07:50:02 File Type : PNG MIME Type : image/png Exif Byte Order : Little-endian (Intel) ---- PNG ---- Bit Depth : 16 Color Type : RGB Filter : Adaptive Interlace : Noninterlaced Significant Bits : 16 16 16 Source : NIKOND80 Software : digiKam 0.9.2-final ( libpng version 1.2.15beta5 - December 8, 2006 (header) ) IPTC Profile : (Binary data 134611 bytes, use -b option to extract) ---- ICC_Profile ---- Profile CMM Type : scrs Profile Version : 2.1.0 Profile Class : Display Device Profile Color Space Data : RGB Profile Connection Space : XYZ Profile Date Time : 2001:04:12 19:02:14 Profile File Signature : acsp Primary Platform : Microsoft Corporation CMM Flags : Not Embedded, Independent Device Manufacturer : none Device Model : none Device Attributes : Reflective, Glossy, Positive, Color Rendering Intent : Perceptual Connection Space Illuminant : 0.9642 1 0.82491 Profile Creator : scrs Profile ID : 0 Profile Description : Wide Gamut RGB Profile Copyright : Media White Point : 0.9642 1 0.82491 Media Black Point : 0 0 0 Red Matrix Column : 0.71651 0.25874 0 Green Matrix Column : 0.10103 0.72469 0.05122 Blue Matrix Column : 0.14679 0.0166 0.7739 Red Tone Reproduction Curve : (Binary data 524 bytes, use -b option to extract) Green Tone Reproduction Curve : (Binary data 524 bytes, use -b option to extract) Blue Tone Reproduction Curve : (Binary data 524 bytes, use -b option to extract) ---- EXIF ---- Processing Software : digiKam-0.9.2-final Subfile Type : Full-resolution Image Image Width : 684 Image Height : 1024 Bits Per Sample : 12 Compression : Nikon NEF Compressed Photometric Interpretation : Color Filter Array Document Name : DSC_0006.png Make : NIKON CORPORATION Camera Model Name : NIKON D80 Orientation : Horizontal (normal) Samples Per Pixel : 1 X Resolution : 300 Y Resolution : 300 Planar Configuration : Chunky Resolution Unit : inches Modify Date : 2007:09:30 15:58:25 Reference Black White : 0 255 0 255 0 255 CFA Repeat Pattern Dim : 2 2 CFA Pattern 2 : 1 2 0 1 Exposure Time : 1/200 F Number : 5.3 Exposure Program : Program AE ISO : 500 Create Date : 2007:09:30 15:58:25 Exposure Compensation : 0 Max Aperture Value : 5.1 Metering Mode : Center-weighted average Flash : No Flash Focal Length : 58.0mm User Comment : Sub Sec Time : 50 Sub Sec Time Original : 50 Sub Sec Time Digitized : 50 Exif Image Width : 684 Exif Image Length : 1024 File Source : Digital Camera Scene Type : Directly photographed Custom Rendered : Normal Exposure Mode : Auto Digital Zoom Ratio : 1 Focal Length In 35mm Format : 87mm Scene Capture Type : Standard Gain Control : Low gain up Contrast : Normal Saturation : Normal Sharpness : Normal Subject Distance Range : Unknown (0) Date/Time Original : 2007:09:30 15:58:25 TIFF-EP Standard ID : 1 0 0 0 Sensing Method : One-chip color area Thumbnail Offset : 13487 Thumbnail Length : 3584 ---- MakerNotes ---- Maker Note Version : 2.10 Color Mode : Color Quality : Raw White Balance : Auto Focus Mode : AF-A Flash Setting : Slow Flash Type : White Balance Fine Tune : 0 Color Balance 1 : 1.62109375 1.62109375 1 1 Program Shift : 0 Exposure Difference : 0 Flash Exposure Compensation : 0 ISO Setting : 500 Flash Exposure Bracket Value : 0.0 Exposure Bracket Value : 0 Crop Hi Speed : Off (3904x2616 cropped to 3904x2616 at pixel 0,0) Serial Number : 5001393 Color Space : sRGB Tone Comp : Auto Lens Type : G Lens : 18-135mm f/3.5-5.6 Flash Mode : Did Not Fire AF Area Mode : Single Area AF Point : Left AF Points In Focus : Left Shooting Mode : Single-Frame Auto Bracket Release : Manual Release NEF Curve 1 : (Binary data 8256 bytes, use -b option to extract) Light Source : Natural Hue Adjustment : 0 Noise Reduction : Off NEF Curve 2 : (Binary data 1412 bytes, use -b option to extract) Raw Image Center : 1952 1308 Sensor Pixel Size : 6.05 x 6.05 um Shutter Count : 853 Image Optimization : Normal Vari Program : Multi Exposure Version : 0100 Multi Exposure Mode : Off Multi Exposure Shots : 0 Multi Exposure Auto Gain : Off High ISO Noise Reduction : Normal Shot Info Version : 0208 Vibration Reduction : Off, Rotated 270 CW WB RGGB Levels : 415 256 256 415 Lens Data Version : 0202 Exit Pupil Position : 102.4mm AF Aperture : 5.0 Focus Position : 0x04 Focus Distance : 3.98 m Lens ID Number : 143 Lens F Stops : 5.33 Min Focal Length : 18.3mm Max Focal Length : 134.5mm Max Aperture At Min Focal : 3.6 Max Aperture At Max Focal : 5.7 MCU Version : 145 Effective Max Aperture : 5.2 ---- Composite ---- Aperture : 5.3 Blue Balance : 1.621094 CFA Pattern : [Green,Blue][Red,Green] Image Size : 684x1024 Lens ID : AF-S DX Zoom-Nikkor 18-135mm f/3.5-5.6G IF-ED Lens : 18-135mm f/3.5-5.6 G Red Balance : 1.621094 Scale Factor To 35mm Equivalent : 1.5 Shutter Speed : 1/200 Thumbnail Image : (Binary data 3584 bytes, use -b option to extract) Circle Of Confusion : 0.020 mm Depth of Field : 1.00 m (3.54 - 4.54) Focal Length : 58.0mm (35mm equivalent: 87.0mm) Hyperfocal Distance : 31.69 m Light Value : 10.1 Date/Time Original : 2007:09:30 15:58:25.50 All tags with an hexa number on starting line come from Exif/Makernotes embeded in text chunk like digiKam or Imagemagick do (i'm sure, i have talking about this subject with UFRAW author in Exiv2 mailing list) Now look where are Dimensions, Compression, bit depth, and color mode ? Only on Exif byte array, not on PNG ImageHeader Tags... Conclusion : i suspect than : - this file is corrupted or uncomplete (where are dimension and compression infos ?) - and something is wrong on KFileMetaInfo (why at least Bit Depth and Color Type are not found ?) Gilles
Oups, wrong exiftool console output, sorry. this one is better : exiftool -g -H DSC_0006_digikam.png ---- ExifTool ---- - ExifTool Version Number : 7.00 - Warning : Bad NikonPreview directory ---- File ---- - File Name : DSC_0006_digikam.png - Directory : . - File Size : 3 MB - File Modification Date/Time : 2007:11:19 07:50:02 - File Type : PNG - MIME Type : image/png - Exif Byte Order : Little-endian (Intel) ---- PNG ---- 0x0008 Bit Depth : 16 0x0009 Color Type : RGB 0x000b Filter : Adaptive 0x000c Interlace : Noninterlaced - Significant Bits : 16 16 16 - Source : NIKOND80 - Software : digiKam 0.9.2-final ( libpng version 1.2.15beta5 - December 8, 2006 (header) ) - IPTC Profile : (Binary data 134611 bytes, use -b option to extract) ---- ICC_Profile ---- 0x0004 Profile CMM Type : scrs 0x0008 Profile Version : 2.1.0 0x000c Profile Class : Display Device Profile 0x0010 Color Space Data : RGB 0x0014 Profile Connection Space : XYZ 0x0018 Profile Date Time : 2001:04:12 19:02:14 0x0024 Profile File Signature : acsp 0x0028 Primary Platform : Microsoft Corporation 0x002c CMM Flags : Not Embedded, Independent 0x0030 Device Manufacturer : none 0x0034 Device Model : none 0x0038 Device Attributes : Reflective, Glossy, Positive, Color 0x0040 Rendering Intent : Perceptual 0x0044 Connection Space Illuminant : 0.9642 1 0.82491 0x0050 Profile Creator : scrs 0x0054 Profile ID : 0 - Profile Description : Wide Gamut RGB - Profile Copyright : - Media White Point : 0.9642 1 0.82491 - Media Black Point : 0 0 0 - Red Matrix Column : 0.71651 0.25874 0 - Green Matrix Column : 0.10103 0.72469 0.05122 - Blue Matrix Column : 0.14679 0.0166 0.7739 - Red Tone Reproduction Curve : (Binary data 524 bytes, use -b option to extract) - Green Tone Reproduction Curve : (Binary data 524 bytes, use -b option to extract) - Blue Tone Reproduction Curve : (Binary data 524 bytes, use -b option to extract) ---- EXIF ---- 0x000b Processing Software : digiKam-0.9.2-final 0x00fe Subfile Type : Full-resolution Image 0x0100 Image Width : 684 0x0101 Image Height : 1024 0x0102 Bits Per Sample : 12 0x0103 Compression : Nikon NEF Compressed 0x0106 Photometric Interpretation : Color Filter Array 0x010d Document Name : DSC_0006.png 0x010f Make : NIKON CORPORATION 0x0110 Camera Model Name : NIKON D80 0x0112 Orientation : Horizontal (normal) 0x0115 Samples Per Pixel : 1 0x011a X Resolution : 300 0x011b Y Resolution : 300 0x011c Planar Configuration : Chunky 0x0128 Resolution Unit : inches 0x0132 Modify Date : 2007:09:30 15:58:25 0x0214 Reference Black White : 0 255 0 255 0 255 0x828d CFA Repeat Pattern Dim : 2 2 0x828e CFA Pattern 2 : 1 2 0 1 0x829a Exposure Time : 1/200 0x829d F Number : 5.3 0x8822 Exposure Program : Program AE 0x8827 ISO : 500 0x9004 Create Date : 2007:09:30 15:58:25 0x9204 Exposure Compensation : 0 0x9205 Max Aperture Value : 5.1 0x9207 Metering Mode : Center-weighted average 0x9209 Flash : No Flash 0x920a Focal Length : 58.0mm 0x9286 User Comment : 0x9290 Sub Sec Time : 50 0x9291 Sub Sec Time Original : 50 0x9292 Sub Sec Time Digitized : 50 0xa002 Exif Image Width : 684 0xa003 Exif Image Length : 1024 0xa300 File Source : Digital Camera 0xa301 Scene Type : Directly photographed 0xa401 Custom Rendered : Normal 0xa402 Exposure Mode : Auto 0xa404 Digital Zoom Ratio : 1 0xa405 Focal Length In 35mm Format : 87mm 0xa406 Scene Capture Type : Standard 0xa407 Gain Control : Low gain up 0xa408 Contrast : Normal 0xa409 Saturation : Normal 0xa40a Sharpness : Normal 0xa40c Subject Distance Range : Unknown (0) 0x9003 Date/Time Original : 2007:09:30 15:58:25 0x9216 TIFF-EP Standard ID : 1 0 0 0 0x9217 Sensing Method : One-chip color area 0x0201 Thumbnail Offset : 13487 0x0202 Thumbnail Length : 3584 ---- MakerNotes ---- 0x0001 Maker Note Version : 2.10 0x0003 Color Mode : Color 0x0004 Quality : Raw 0x0005 White Balance : Auto 0x0007 Focus Mode : AF-A 0x0008 Flash Setting : Slow 0x0009 Flash Type : 0x000b White Balance Fine Tune : 0 0x000c Color Balance 1 : 1.62109375 1.62109375 1 1 0x000d Program Shift : 0 0x000e Exposure Difference : 0 0x0012 Flash Exposure Compensation : 0 0x0013 ISO Setting : 500 0x0018 Flash Exposure Bracket Value : 0.0 0x0019 Exposure Bracket Value : 0 0x001b Crop Hi Speed : Off (3904x2616 cropped to 3904x2616 at pixel 0,0) 0x001d Serial Number : 5001393 0x001e Color Space : sRGB 0x0081 Tone Comp : Auto 0x0083 Lens Type : G 0x0084 Lens : 18-135mm f/3.5-5.6 0x0087 Flash Mode : Did Not Fire 0x0000 AF Area Mode : Single Area 0x0001 AF Point : Left 0x0002 AF Points In Focus : Left 0x0089 Shooting Mode : Single-Frame 0x008a Auto Bracket Release : Manual Release 0x008c NEF Curve 1 : (Binary data 8256 bytes, use -b option to extract) 0x0090 Light Source : Natural 0x0092 Hue Adjustment : 0 0x0095 Noise Reduction : Off 0x0096 NEF Curve 2 : (Binary data 1412 bytes, use -b option to extract) 0x0099 Raw Image Center : 1952 1308 0x009a Sensor Pixel Size : 6.05 x 6.05 um 0x00a7 Shutter Count : 853 0x00a9 Image Optimization : Normal 0x00ab Vari Program : 0x0000 Multi Exposure Version : 0100 0x0001 Multi Exposure Mode : Off 0x0002 Multi Exposure Shots : 0 0x0003 Multi Exposure Auto Gain : Off 0x00b1 High ISO Noise Reduction : Normal 0x0000 Shot Info Version : 0208 0x024e Vibration Reduction : Off, Rotated 270 CW 0x0000 WB RGGB Levels : 415 256 256 415 0x0000 Lens Data Version : 0202 0x0004 Exit Pupil Position : 102.4mm 0x0005 AF Aperture : 5.0 0x0008 Focus Position : 0x04 0x0009 Focus Distance : 3.98 m 0x000b Lens ID Number : 143 0x000c Lens F Stops : 5.33 0x000d Min Focal Length : 18.3mm 0x000e Max Focal Length : 134.5mm 0x000f Max Aperture At Min Focal : 3.6 0x0010 Max Aperture At Max Focal : 5.7 0x0011 MCU Version : 145 0x0012 Effective Max Aperture : 5.2 ---- Composite ---- - Aperture : 5.3 - Blue Balance : 1.621094 - CFA Pattern : [Green,Blue][Red,Green] - Image Size : 684x1024 - Lens ID : AF-S DX Zoom-Nikkor 18-135mm f/3.5-5.6G IF-ED - Lens : 18-135mm f/3.5-5.6 G - Red Balance : 1.621094 - Scale Factor To 35mm Equivalent : 1.5 - Shutter Speed : 1/200 - Thumbnail Image : (Binary data 3584 bytes, use -b option to extract) - Circle Of Confusion : 0.020 mm - Depth of Field : 1.00 m (3.54 - 4.54) - Focal Length : 58.0mm (35mm equivalent: 87.0mm) - Hyperfocal Distance : 31.69 m - Light Value : 10.1 - Date/Time Original : 2007:09:30 15:58:25.50 Gilles
Created attachment 31519 [details] digiKam for KDE4 vs gimp Ar, Look like the problem diseapear with digiKam for KDE4, where KFileMetaInfo is not used anymore... I close this file now. Gilles Caulier