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Extract exif-data from uploaded images#885

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image-exif-data
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Extract exif-data from uploaded images#885
gunnarvelle wants to merge 11 commits intomasterfrom
image-exif-data

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@gunnarvelle gunnarvelle commented Mar 5, 2026 •
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Henter ut exif-data ved opplasting av bilde.

La til filtering slik at dei verste binære exif-dataene ikkje lagres. Utenom det så lagres alt av exif i databasen, men kun dato for når bildet blei tatt returneres til klient i denne omgangen. For bildet i kommentaren under vil det seie "Exif SubIFD:Date/Time Original": "2025:12:10 20:46:09"

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gunnarvelle commented Mar 5, 2026 •
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Testa å laste opp bilde fra mobilen:

"exifData": {
        "JPEG:Component 3": "Quantization table 1, Sampling factors 1 horiz/1 vert",
        "Exif IFD0:Model": "Pixel 6",
        "Exif SubIFD:Sub-Sec Time Original": "589",
        "JPEG:Image Height": "4032",
        "Exif SubIFD:Time Zone Digitized": "+01:00",
        "Exif SubIFD:Subject Distance Range": "1",
        "Exif IFD0:Date/Time": "2025:12:10 20:46:09",
        "Exif SubIFD:Date/Time Original": "2025:12:10 20:46:09",
        "GPS:GPS Longitude": "9/1 53/1 4007/100",
        "JFIF:Thumbnail Width Pixels": "0",
        "GPS:GPS Altitude": "5359/100",
        "ICC Profile:Green TRC": "112 97 114 97 0 0 0 0 0 3 0 0 0 2 102 102 0 0 242 167 0 0 13 89 0 0 19 208 0 0 10 91",
        "Exif SubIFD:Sharpness": "0",
        "Exif SubIFD:Max Aperture Value": "1.78",
        "Exif SubIFD:Sub-Sec Time Digitized": "589",
        "Exif IFD0:Resolution Unit": "2",
        "Exif SubIFD:Exposure Program": "2",
        "GPS:GPS Latitude": "59/1 45/1 3404/100",
        "Exif Thumbnail:Thumbnail Length": "21000",
        "Exif SubIFD:Time Zone": "+01:00",
        "ICC Profile:Profile Copyright": "109 108 117 99 0 0 0 0 0 0 0 1 0 0 0 12 101 110 85 83 0 0 0 62 0 0 0 28 0 67 0 111 0 112 0 121 0 114 0 105 0 103 0 104 0 116 0 32 0 40 0 99 0 41 0 32 0 50 0 48 0 50 0 51 0 32 0 71 0 111 0 111 0 103 0 108 0 101 0 32 0 73 0 110 0 99 0 46 0 0",
        "JPEG:Component 2": "Quantization table 1, Sampling factors 1 horiz/1 vert",
        "Exif SubIFD:Lens Make": "Google",
        "JFIF:Thumbnail Height Pixels": "0",
        "GPS:GPS Longitude Ref": "E",
        "ICC Profile:Blue Colorant": "88 89 90 32 0 0 0 0 0 0 36 159 0 0 15 132 0 0 182 195",
        "Exif SubIFD:FlashPix Version": "48 49 48 48",
        "ICC Profile:Profile Size": "596",
        "File Type:Detected File Type Name": "JPEG",
        "File Type:Detected File Type Long Name": "Joint Photographic Experts Group",
        "GPS:GPS Time-Stamp": "19/1 45/1 56/1",
        "ICC Profile:Profile Connection Space": "XYZ ",
        "GPS:GPS Version ID": "2 2 0 0",
        "File Type:Detected MIME Type": "image/jpeg",
        "ICC Profile:Version": "67108864",
        "Exif IFD0:Y Resolution": "72",
        "Exif SubIFD:Exif Version": "48 50 51 50",
        "ICC Profile:Color space": "RGB ",
        "Exif SubIFD:Scene Type": "1",
        "Exif SubIFD:Sub-Sec Time": "589",
        "Exif IFD0:Make": "Google",
        "ICC Profile:Profile Description": "109 108 117 99 0 0 0 0 0 0 0 1 0 0 0 12 101 110 85 83 0 0 0 36 0 0 0 28 0 115 0 82 0 71 0 66 0 32 0 73 0 69 0 67 0 54 0 49 0 57 0 54 0 54 0 45 0 50 0 46 0 49 0 0",
        "Exif SubIFD:Sensing Method": "2",
        "Exif IFD0:YCbCr Positioning": "1",
        "GPS:GPS Altitude Ref": "0",
        "Exif SubIFD:Focal Length": "6.81",
        "JPEG:Number of Components": "3",
        "ICC Profile:Green Colorant": "88 89 90 32 0 0 0 0 0 0 98 151 0 0 183 135 0 0 24 217",
        "Exif IFD0:Orientation": "1",
        "Exif SubIFD:Time Zone Original": "+01:00",
        "Exif SubIFD:Saturation": "0",
        "Exif Thumbnail:Compression": "6",
        "Exif SubIFD:Components Configuration": "1 2 3 0",
        "GPS:GPS Date Stamp": "2025:12:10",
        "JFIF:X Resolution": "1",
        "JPEG:Compression Type": "0",
        "Interoperability:Interoperability Index": "R98",
        "Exif SubIFD:Custom Rendered": "1",
        "Exif IFD0:X Resolution": "72",
        "Huffman:Number of Tables": "4",
        "Exif SubIFD:Digital Zoom Ratio": "0",
        "JPEG:Image Width": "2268",
        "ICC Profile:Blue TRC": "112 97 114 97 0 0 0 0 0 3 0 0 0 2 102 102 0 0 242 167 0 0 13 89 0 0 19 208 0 0 10 91",
        "Exif SubIFD:Metering Mode": "2",
        "Exif SubIFD:Subject Distance": "531/1000",
        "Exif SubIFD:Exif Image Height": "4032",
        "Exif SubIFD:F-Number": "1.85",
        "GPS:GPS Img Direction": "116",
        "Exif SubIFD:Date/Time Digitized": "2025:12:10 20:46:09",
        "Interoperability:Interoperability Version": "48 49 48 48",
        "JFIF:Resolution Units": "0",
        "Exif SubIFD:Contrast": "0",
        "ICC Profile:Red Colorant": "88 89 90 32 0 0 0 0 0 0 111 160 0 0 56 245 0 0 3 144",
        "ICC Profile:Profile Date/Time": "2023:03:09 10:57:00",
        "Exif SubIFD:Color Space": "1",
        "Exif SubIFD:Aperture Value": "1.78",
        "ICC Profile:XYZ values": "0.964 1 0.825",
        "ICC Profile:Chromatic Adaptation": "115 102 51 50 0 0 0 0 0 1 12 66 0 0 5 222 255 255 243 39 0 0 7 147 0 0 253 144 255 255 251 163 255 255 253 164 0 0 3 220 0 0 192 110",
        "Exif SubIFD:Flash": "16",
        "JPEG:Component 1": "Quantization table 0, Sampling factors 2 horiz/2 vert",
        "JPEG:Data Precision": "8",
        "Exif SubIFD:Shutter Speed Value": "5.64",
        "Exif SubIFD:Brightness Value": "-11/100",
        "Exif SubIFD:Scene Capture Type": "0",
        "ICC Profile:Device manufacturer": "GOOG",
        "JFIF:Y Resolution": "1",
        "ICC Profile:Signature": "acsp",
        "Exif SubIFD:Focal Length 35": "24",
        "Exif Thumbnail:Y Resolution": "72",
        "Exif IFD0:Software": "HDR+ 1.0.821848803zd",
        "ICC Profile:Media White Point": "88 89 90 32 0 0 0 0 0 0 246 214 0 1 0 0 0 0 211 45",
        "Exif SubIFD:Lens Model": "Pixel 6 back camera 6.81mm f/1.85",
        "Exif SubIFD:White Balance Mode": "0",
        "ICC Profile:Media Black Point": "88 89 90 32 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0",
        "Exif SubIFD:ISO Speed Ratings": "579",
        "Exif Thumbnail:X Resolution": "72",
        "Exif Thumbnail:Resolution Unit": "2",
        "ICC Profile:Tag Count": "11",
        "GPS:GPS Img Direction Ref": "M",
        "Exif Thumbnail:Thumbnail Offset": "1283",
        "ICC Profile:Red TRC": "112 97 114 97 0 0 0 0 0 3 0 0 0 2 102 102 0 0 242 167 0 0 13 89 0 0 19 208 0 0 10 91",
        "Exif SubIFD:Exif Image Width": "2268",
        "Exif SubIFD:Exposure Mode": "0",
        "Exif SubIFD:Exposure Bias Value": "0",
        "Exif SubIFD:Exposure Time": "0.02",
        "ICC Profile:Class": "mntr",
        "JFIF:Version": "258",
        "GPS:GPS Latitude Ref": "N",
        "Exif Thumbnail:Orientation": "1",
        "File Type:Expected File Name Extension": "jpg",
        "XMP:XMP Value Count": "1"
}

Litt i overkant?

@gunnarvelle gunnarvelle force-pushed the image-exif-data branch 2 times, most recently from 18f2954 to 8202c47 Compare March 6, 2026 09:34
@gunnarvelle gunnarvelle requested a review from a team March 6, 2026 11:51
@gunnarvelle gunnarvelle marked this pull request as ready for review March 6, 2026 11:51
gunnarvelle
gunnarvelle commented Mar 6, 2026
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image-api/src/main/scala/no/ndla/imageapi/service/ExifUtil.scala
}

private def extractMetadataMap(metadata: ImageMetadata): Map[String, String] = {
metadata
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@gunnarvelle gunnarvelle Mar 6, 2026

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Metadata er egentlig delt inn i directories, men her flates det ut til en endimensjonal map. Tenkte det var tilstrekkelig.

jnatten
jnatten reviewed Mar 11, 2026
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Hva er planen for å bruke dette?

jnatten
jnatten reviewed Mar 11, 2026
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gunnarvelle commented Mar 11, 2026

Hva er planen for å bruke dette?

I utgangspunktet kun for å hente ut dato for når bildet blei tatt. Men når eg først skulle lese exif-data kunne eg like gjerne hente ut alt som kan være nyttig på sikt.

@gunnarvelle gunnarvelle requested review from a team, amatho and jnatten March 11, 2026 11:29
jnatten
jnatten reviewed Mar 12, 2026
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@gunnarvelle gunnarvelle requested a review from jnatten March 12, 2026 09:08
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