https://bugs.kde.org/show_bug.cgi?id=439206
--- Comment #17 from kfut10y...@protonmail.com --- (In reply to Maik Qualmann from comment #15) > If I look at other camera makes, Nikon, Canon, Sony then Pixel X/Y Dimension > contains the raw image size. > > Maik To be clear, I'm not saying Fuji is right to do it that way. I'm just saying that it† appears to be what they are doing. († "it" being "using the embedded JPG image dimensions for their PixelXDimension and PixelYDimension fields") That being said, upon further investigation I think Fuji's handling may actually be consistent with Canon's handling. The CR2 files I have here pull the size of the embedded JPG preview rather than the RAW size for their PixelXDimension and PixelYDimension (or rather ExifImageWidth and ExifImageHeight by ExifTool’s naming). The difference is that Canon’s embedded JPG preview is the same as the slightly shrunken RAW Cropped Size (or “CroppedImageHeight” in Canon’s case), rather than using a substantially reduced size embed like Fuji does. So, I downloaded some Nikon, Sony, Pentax, Panasonic, Olympus, Sigma, Hasselblad, and Phase One RAW files to see if it was consistent. Findings are as follows: Fuji: Uses embedded JPG size. Embedded JPG is shrunken in size (1920x1080). Canon 80D: Uses embedded JPG size. Embedded JPG is slightly shrunken in size (equivalent to the cropped RAW size). Nikon Z6 II: Field left empty. digiKam Image Length and Image Width uses 120x160 on the image I was testing with, and lists the RAW image size under SubImage2. Sony A7C: Uses cropped RAW size. Embedded JPG is (1616x1080). Pentax K-1 II: Field left empty. digiKam Image Length and Image Width uses 120x160 on the image I was testing with, and splits the RAW image size and embedded TIF image size into SubImage1 and SubImage2 respectively. Panasonic DC-S5 and DC-GH5 II: Uses embedded JPG size. Embedded JPG is shrunken in size (1920x1280 and 1920x1440 respectively). Olympus M10 IV: Field left empty. digiKam pulls ImageHeight and ImageWidth which are the uncropped RAW size. Embedded jpg is 3200x2400. Sigma fp L: Uses embedded JPG size. Embedded JPG is slightly shrunken in size (equivalent to the cropped RAW size). Hasselblad X1D: Field left empty. digiKam Image Length and Image Width uses embedded TIF size. Embedded TIF shrunken in size (1440x1080). Phase One IQ4 150MP: Equivalent to cropped RAW size (but looks like digiKam can’t read it yet). Not seeing the same issue in testing for the other ones however (with the possible exception of the DC-GH5 II, for which so far it is failing to generate face thumbnails for the samples I have downloaded). Looking at the spec, I think we may not be able to rely on PixelXDimension and PixelYDimension existing (columns MV and MW when exported to CSV via ExifTool, which renames them as ExifImageHeight and ExifImageWidth), as the spec indicates that they should be omitted for uncompressed RAWs. The EXIF 2.32 spec indicates on page 30 that the ImageWidth and ImageLength tags should be used instead (columns UX and UM when exported to CSV via ExifTool). All of the above mentioned files list their cropped or uncropped raw sizes in those columns, except for Fuji (which instead lists them in RawImageFullWidth, RawImageFullHeight, RawImageWidth, and RawImageHeight which can be found in columns AIF, AID, AII, and AIG). They also all list their cropped or uncropped raw sizes in ImageSize, including Fuji (column UR when exported to CSV via ExifTool). -- You are receiving this mail because: You are watching all bug changes.
