[Digikam-devel] [Bug 217984] offer and use by default for jpeg files: use quality of the original picture
Gilles Caulier
caulier.gilles at gmail.com
Wed Sep 12 10:24:11 BST 2012
https://bugs.kde.org/show_bug.cgi?id=217984
--- Comment #6 from Gilles Caulier <caulier.gilles at gmail.com> ---
An IM example :
[gilles at localhost Camera]$ identify -verbose Bryce_2007_0102.jpg
Image: Bryce_2007_0102.jpg
Format: JPEG (Joint Photographic Experts Group JFIF format)
Class: DirectClass
Geometry: 3872x2592+0+0
Resolution: 300x300
Print size: 12.9067x8.64
Units: PixelsPerInch
Type: TrueColor
Endianess: Undefined
Colorspace: sRGB
Depth: 8-bit
Channel depth:
red: 8-bit
green: 8-bit
blue: 8-bit
Channel statistics:
Red:
min: 4 (0.0156863)
max: 255 (1)
mean: 112.346 (0.440574)
standard deviation: 49.9501 (0.195883)
kurtosis: -0.905399
skewness: 0.0162092
Green:
min: 3 (0.0117647)
max: 239 (0.937255)
mean: 94.4013 (0.370201)
standard deviation: 56.1 (0.22)
kurtosis: -0.899077
skewness: 0.540585
Blue:
min: 0 (0)
max: 232 (0.909804)
mean: 92.1944 (0.361547)
standard deviation: 71.8705 (0.281845)
kurtosis: -1.19741
skewness: 0.634281
Image statistics:
Overall:
min: 0 (0)
max: 255 (1)
mean: 99.6473 (0.390774)
standard deviation: 60.0211 (0.235377)
kurtosis: -1.00412
skewness: 0.407677
Rendering intent: Perceptual
Gamma: 0.45455
Chromaticity:
red primary: (0.64,0.33)
green primary: (0.3,0.6)
blue primary: (0.15,0.06)
white point: (0.3127,0.329)
Interlace: None
Background color: white
Border color: srgb(223,223,223)
Matte color: grey74
Transparent color: black
Compose: Over
Page geometry: 3872x2592+0+0
Dispose: Undefined
Iterations: 0
Compression: JPEG
Quality: 99
Orientation: TopLeft
Properties:
comment: Bryce Canyon NP. Thor's hammer (si j'avais un marteau ...) Mais
que pouvait bien venir faire Thor dans cet endroit ??
date:create: 2012-07-11T09:05:33+02:00
date:modify: 2008-03-06T00:00:00+01:00
exif:CFAPattern: 0, 2, 0, 2, 1, 0, 2, 1
exif:ColorSpace: 1
exif:ComponentsConfiguration: 1, 2, 3, 0
exif:CompressedBitsPerPixel: 4/1
exif:Compression: 6
exif:Contrast: 0
exif:CustomRendered: 0
exif:DateTime: 2007:07:30 08:44:54
exif:DateTimeDigitized: 2007:07:30 08:44:54
exif:DateTimeOriginal: 2007:07:30 08:44:54
exif:DigitalZoomRatio: 1/1
exif:ExifImageLength: 2592
exif:ExifImageWidth: 3872
exif:ExifOffset: 277
exif:ExifVersion: 48, 50, 50, 49
exif:ExposureBiasValue: 0/6
exif:ExposureMode: 0
exif:ExposureProgram: 3
exif:ExposureTime: 10/800
exif:FileSource: 3
exif:Flash: 0
exif:FlashPixVersion: 48, 49, 48, 48
exif:FNumber: 100/10
exif:FocalLength: 180/10
exif:FocalLengthIn35mmFilm: 27
exif:GainControl: 0
exif:GPSInfo: 3378
exif:GPSVersionID: 2, 2, 0, 0
exif:InteroperabilityIndex: R98
exif:InteroperabilityOffset: 3348
exif:InteroperabilityVersion: 48, 49, 48, 48
exif:ISOSpeedRatings: 100
exif:JPEGInterchangeFormat: 3502
exif:JPEGInterchangeFormatLength: 9141
exif:LightSource: 9
exif:Make: NIKON CORPORATION
exif:MakerNote: 78, 105, 107, 111, 110, 0, 2, 16, 0, 0, 77, 77, 0, 42, 0,
0, 0, 8, 0, 51, 0, 1, 0, 7, 0, 0, 0, 4, 48, 50, 49, 48, 0, 2, 0, 3, 0, 0, 0, 2,
0, 0, 0, 100, 0, 3, 0, 2, 0, 0, 0, 6, 0, 0, 2, 114, 0, 4, 0, 2, 0, 0, 0, 8, 0,
0, 2, 120, 0, 5, 0, 2, 0, 0, 0, 13, 0, 0, 2, 128, 0, 6, 0, 2, 0, 0, 0, 7, 0, 0,
2, 141, 0, 7, 0, 2, 0, 0, 0, 7, 0, 0, 2, 148, 0, 8, 0, 2, 0, 0, 0, 13, 0, 0, 2,
155, 0, 9, 0, 2, 0, 0, 0, 20, 0, 0, 2, 168, 0, 11, 0, 8, 0, 0, 0, 1, 0, 0, 0,
0, 0, 12, 0, 5, 0, 0, 0, 4, 0, 0, 2, 188, 0, 13, 0, 7, 0, 0, 0, 4, 0, 1, 6, 0,
0, 14, 0, 7, 0, 0, 0, 4, 0, 1, 12, 0, 0, 17, 0, 4, 0, 0, 0, 1, 0, 0, 9, 62, 0,
18, 0, 7, 0, 0, 0, 4, 0, 1, 6, 0, 0, 19, 0, 3, 0, 0, 0, 2, 0, 0, 0, 100, 0, 22,
0, 3, 0, 0, 0, 4, 0, 0, 2, 220, 0, 23, 0, 7, 0, 0, 0, 4, 0, 1, 6, 0, 0, 24, 0,
7, 0, 0, 0, 4, 0, 1, 6, 0, 0, 25, 0, 10, 0, 0, 0, 1, 0, 0, 2, 228, 0, 27, 0, 3,
0, 0, 0, 7, 0, 0, 2, 236, 0, 28, 0, 7, 0, 0, 0, 3, 0, 1, 6, 0, 0, 29, 0, 2, 0,
0, 0, 8, 0, 0, 2, 250, 0, 30, 0, 3, 0, 0, 0, 1, 0, 1, 0, 0, 0, 32, 0, 1, 0, 0,
0, 1, 0, 0, 0, 0, 0, 129, 0, 2, 0, 0, 0, 9, 0, 0, 3, 2, 0, 131, 0, 1, 0, 0, 0,
1, 6, 0, 0, 0, 0, 132, 0, 5, 0, 0, 0, 4, 0, 0, 3, 11, 0, 135, 0, 1, 0, 0, 0, 1,
0, 0, 0, 0, 0, 136, 0, 7, 0, 0, 0, 4, 0, 9, 2, 0, 0, 137, 0, 3, 0, 0, 0, 1, 0,
0, 0, 0, 0, 138, 0, 3, 0, 0, 0, 1, 0, 2, 0, 0, 0, 139, 0, 7, 0, 0, 0, 4, 64, 1,
12, 0, 0, 141, 0, 2, 0, 0, 0, 9, 0, 0, 3, 43, 0, 144, 0, 2, 0, 0, 0, 12, 0, 0,
3, 52, 0, 145, 0, 7, 0, 0, 3, 16, 0, 0, 3, 64, 0, 146, 0, 8, 0, 0, 0, 1, 0, 0,
0, 0, 0, 149, 0, 2, 0, 0, 0, 5, 0, 0, 6, 80, 0, 151, 0, 7, 0, 0, 2, 96, 0, 0,
6, 85, 0, 152, 0, 7, 0, 0, 0, 31, 0, 0, 8, 181, 0, 154, 0, 5, 0, 0, 0, 2, 0, 0,
8, 212, 0, 162, 0, 4, 0, 0, 0, 1, 0, 85, 42, 200, 0, 163, 0, 1, 0, 0, 0, 1, 0,
0, 0, 0, 0, 165, 0, 4, 0, 0, 0, 1, 0, 0, 9, 115, 0, 166, 0, 4, 0, 0, 0, 1, 0,
0, 0, 0, 0, 167, 0, 4, 0, 0, 0, 1, 0, 0, 9, 115, 0, 168, 0, 7, 0, 0, 0, 20, 0,
0, 8, 228, 0, 169, 0, 2, 0, 0, 0, 16, 0, 0, 8, 248, 0, 170, 0, 2, 0, 0, 0, 16,
0, 0, 9, 8, 0, 176, 0, 7, 0, 0, 0, 16, 0, 0, 9, 24, 0, 177, 0, 3, 0, 0, 0, 1,
0, 0, 0, 0, 0, 0, 0, 0, 67, 79, 76, 79, 82, 0, 70, 73, 78, 69, 32, 32, 32, 0,
83, 85, 78, 78, 89, 32, 32, 32, 32, 32, 32, 32, 0, 78, 79, 82, 77, 65, 76, 0,
65, 70, 45, 83, 32, 32, 0, 78, 79, 82, 77, 65, 76, 32, 32, 32, 32, 32, 32, 0,
32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 0,
0, 0, 1, 206, 0, 0, 1, 0, 0, 0, 1, 102, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0,
0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 15, 32, 10, 32, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0,
15, 64, 10, 56, 15, 64, 10, 56, 0, 0, 0, 0, 32, 32, 32, 32, 32, 32, 32, 0, 65,
85, 84, 79, 32, 32, 32, 32, 0, 0, 0, 0, 180, 0, 0, 0, 10, 0, 0, 2, 188, 0, 0,
0, 10, 0, 0, 0, 35, 0, 0, 0, 10, 0, 0, 0, 45, 0, 0, 0, 10, 77, 79, 68, 69, 51,
32, 32, 32, 0, 78, 65, 84, 85, 82, 65, 76, 32, 32, 32, 32, 0, 48, 50, 48, 55,
44, 200, 40, 99, 140, 36, 162, 43, 21, 117, 252, 27, 87, 176, 38, 185, 105, 54,
32, 39, 75, 140, 234, 101, 253, 178, 132, 115, 127, 168, 238, 81, 209, 110, 40,
255, 243, 4, 50, 125, 229, 106, 12, 203, 167, 160, 182, 233, 57, 166, 48, 215,
155, 124, 122, 149, 205, 34, 148, 35, 207, 152, 126, 129, 161, 222, 56, 175,
67, 244, 194, 173, 55, 252, 52, 71, 247, 144, 1, 27, 9, 86, 14, 101, 240, 108,
54, 227, 181, 146, 164, 218, 108, 136, 14, 177, 113, 9, 74, 95, 181, 228, 82,
221, 133, 74, 44, 43, 71, 248, 251, 73, 137, 134, 80, 55, 48, 172, 74, 200,
107, 250, 52, 69, 110, 253, 158, 224, 6, 24, 79, 15, 227, 114, 150, 13, 85,
186, 60, 218, 208, 112, 102, 121, 169, 231, 113, 246, 186, 236, 23, 133, 0,
114, 249, 27, 130, 104, 47, 139, 17, 47, 242, 191, 51, 48, 114, 60, 57, 236,
156, 77, 55, 128, 38, 84, 72, 195, 132, 50, 47, 153, 124, 240, 157, 249, 212,
202, 15, 24, 190, 65, 225, 158, 120, 111, 129, 180, 7, 115, 235, 155, 24, 7,
116, 80, 134, 217, 73, 194, 240, 83, 7, 44, 74, 132, 165, 127, 155, 211, 114,
20, 98, 69, 53, 34, 126, 93, 243, 254, 150, 157, 197, 31, 105, 235, 135, 65,
20, 9, 25, 9, 16, 247, 123, 28, 250, 148, 201, 130, 244, 122, 63, 56, 215, 168,
136, 94, 152, 199, 35, 148, 34, 205, 149, 122, 126, 155, 215, 48, 166, 57, 233,
166, 160, 167, 203, 14,
exif:MaxApertureValue: 36/10
exif:MeteringMode: 2
exif:Model: NIKON D200
exif:Orientation: 1
exif:ResolutionUnit: 2
exif:Saturation: 0
exif:SceneCaptureType: 0
exif:SceneType: 1
exif:SensingMethod: 2
exif:Sharpness: 0
exif:Software: Ver.2.00
exif:SubjectDistanceRange: 0
exif:SubSecTime: 73
exif:SubSecTimeDigitized: 73
exif:SubSecTimeOriginal: 73
exif:UserComment: 65, 83, 67, 73, 73, 0, 0, 0, 66, 114, 121, 99, 101, 32,
67, 97, 110, 121, 111, 110, 32, 78, 80, 46, 32, 32, 84, 104, 111, 114, 39, 115,
32, 104, 97, 109, 109, 101, 114, 32, 40, 115, 105, 32, 106, 39, 97, 118, 97,
105, 115, 32, 117, 110, 32, 109, 97, 114, 116, 101, 97, 117, 32, 46, 46, 46,
41, 32, 77, 97, 105, 115, 32, 113, 117, 101, 32, 112, 111, 117, 118, 97, 105,
116, 32, 98, 105, 101, 110, 32, 118, 101, 110, 105, 114, 32, 102, 97, 105, 114,
101, 32, 84, 104, 111, 114, 32, 100, 97, 110, 115, 32, 99, 101, 116, 32, 101,
110, 100, 114, 111, 105, 116, 32, 63, 63, 32
exif:WhiteBalance: 1
exif:XResolution: 300/1
exif:YCbCrPositioning: 2
exif:YResolution: 300/1
jpeg:colorspace: 2
jpeg:sampling-factor: 2x1,1x1,1x1
signature: 70f55c68fa1f5a1e244988f290246cb5b6ee2939208fb6695c2c8994a945889d
unknown: digiKam-0.9.2-final
Profiles:
Profile-8bim: 290 bytes
Profile-exif: 12649 bytes
Profile-iptc: 277 bytes
Originating Program[2,65]: digiKam
Program Version[2,70]: 0.9.2-final
Caption[2,120]: Bryce Canyon NP. Thor's hammer (si j'avais un marteau
...) Mais que pouvait bien venir faire Thor dans cet endroit ??
Priority[2,10]: 5
Byline[2,80]: Pottier Michel
Byline Title[2,85]:
Credit[2,110]:
Src[2,115]:
Copyright String[2,116]: Pottier
Created Date[2,55]: 20070730
Created Time[2,60]: 084454+0000
Keyword[2,25]: Nature/Paysage
Keyword[2,25]: lieux/USA/Bryce NP
Artifacts:
filename: Bryce_2007_0102.jpg
verbose: true
Tainted: False
Filesize: 5.595MB
Number pixels: 10.04M
Pixels per second: 10.68MB
User time: 0.670u
Elapsed time: 0:01.940
Version: ImageMagick 6.7.5-10 2012-08-22 Q16 http://www.imagemagick.org
Look relevant info :
Compression: JPEG
Quality: 99
Gilles Caulier
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