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ridercz/ExifImageSharp.ipynb

Created August 18, 2025 18:26
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ExifImageSharp.ipynb
{
"cells": [
{
"cell_type": "markdown",
"id": "fc1ac59f",
"metadata": {},
"source": [
"# Working with EXIF metadata in C# with ImageSharp"
]
},
{
"cell_type": "markdown",
"id": "a30401d6",
"metadata": {},
"source": [
"## Setup\n",
"\n",
"We need to reference the `SixLabors.ImageSharp` [NuGet package](https://sixlabors.com/products/imagesharp/). Note: If you use ImageSharp for profit, you might need to purchase a [commercial license subscription](https://sixlabors.com/pricing/), which can get quite expensive. If you need free solution for commercial use, use for example the `MetadataExtractor` library."
]
},
{
"cell_type": "code",
"execution_count": 79,
"id": "b0462eb6",
"metadata": {
"language_info": {
"name": "polyglot-notebook"
},
"polyglot_notebook": {
"kernelName": "csharp"
}
},
"outputs": [
{
"data": {
"text/html": [
"<div><div></div><div></div><div><strong>Installed Packages</strong><ul><li><span>SixLabors.ImageSharp, 3.1.11</span></li></ul></div></div>"
]
},
"metadata": {},
"output_type": "display_data"
}
],
"source": [
"#r \"nuget: SixLabors.ImageSharp\""
]
},
{
"cell_type": "markdown",
"id": "8b13c6d2",
"metadata": {},
"source": [
"We define the namespaces we will be using later:"
]
},
{
"cell_type": "code",
"execution_count": 80,
"metadata": {
"language_info": {
"name": "polyglot-notebook"
},
"polyglot_notebook": {
"kernelName": "csharp"
}
},
"outputs": [],
"source": [
"using SixLabors.ImageSharp;\n",
"using SixLabors.ImageSharp.Metadata.Profiles.Exif;"
]
},
{
"cell_type": "markdown",
"id": "8330e79f",
"metadata": {},
"source": [
"Also define the name of image file we are working with:"
]
},
{
"cell_type": "code",
"execution_count": 81,
"metadata": {
"language_info": {
"name": "polyglot-notebook"
},
"polyglot_notebook": {
"kernelName": "csharp"
}
},
"outputs": [],
"source": [
"var imageFileName = @\"demo.jpg\";"
]
},
{
"cell_type": "markdown",
"id": "940b280b",
"metadata": {},
"source": [
"## Show raw data"
]
},
{
"cell_type": "code",
"execution_count": 82,
"metadata": {
"language_info": {
"name": "polyglot-notebook"
},
"polyglot_notebook": {
"kernelName": "csharp"
}
},
"outputs": [
{
"data": {
"text/csv": [
"Tag,Type,IsArray,Value\r\n",
"ImageWidth,Short,False,4000\r\n",
"ImageLength,Short,False,1800\r\n",
"Orientation,Short,False,1\r\n",
"ResolutionUnit,Short,False,2\r\n",
"YCbCrPositioning,Short,False,2\r\n",
"544,Long,False,0\r\n",
"545,Long,False,0\r\n",
"546,Long,False,0\r\n",
"547,Long,False,0\r\n",
"548,Long,False,0\r\n",
"ExposureProgram,Short,False,0\r\n",
"ISOSpeedRatings,Short,True,System.UInt16[]\r\n",
"SensitivityType,Short,False,0\r\n",
"RecommendedExposureIndex,Long,False,0\r\n",
"ExifVersion,Undefined,True,System.Byte[]\r\n",
"ComponentsConfiguration,Undefined,True,System.Byte[]\r\n",
"MeteringMode,Short,False,2\r\n",
"LightSource,Short,False,255\r\n",
"Flash,Short,False,0\r\n",
"SubsecTime,Ascii,False,503\r\n",
"SubsecTimeOriginal,Ascii,False,503\r\n",
"SubsecTimeDigitized,Ascii,False,503\r\n",
"FlashpixVersion,Undefined,True,System.Byte[]\r\n",
"ColorSpace,Short,False,1\r\n",
"PixelXDimension,Short,False,4000\r\n",
"PixelYDimension,Short,False,1800\r\n",
"InteroperabilityIFD,Long,False,3891\r\n",
"SensingMethod,Short,False,1\r\n",
"SceneType,Undefined,False,1\r\n",
"ExposureMode,Short,False,0\r\n",
"WhiteBalance,Short,False,0\r\n",
"FocalLengthIn35mmFilm,Short,False,0\r\n",
"SceneCaptureType,Short,False,0\r\n",
"GPSVersionID,Byte,True,System.Byte[]\r\n",
"GPSLatitudeRef,Ascii,False,N\r\n",
"GPSLongitudeRef,Ascii,False,E\r\n",
"GPSAltitudeRef,Byte,False,0\r\n",
"ImageDescription,Ascii,False,\r\n",
"Make,Ascii,False,motorola\r\n",
"Model,Ascii,False,\"motorola edge 20 lite\"\r\n",
"XResolution,Rational,False,72\r\n",
"YResolution,Rational,False,72\r\n",
"Software,Ascii,False,\r\n",
"DateTime,Ascii,False,\"2025:06:27 15:57:16\"\r\n",
"549,Ascii,False,\r\n",
"ExposureTime,Rational,False,5230/1000000\r\n",
"FNumber,Rational,False,1900/1000\r\n",
"DateTimeOriginal,Ascii,False,\"2025:06:27 15:57:16\"\r\n",
"DateTimeDigitized,Ascii,False,\"2025:06:27 15:57:16\"\r\n",
"ShutterSpeedValue,SignedRational,False,5230/1000000\r\n",
"ApertureValue,Rational,False,1900/1000\r\n",
"BrightnessValue,SignedRational,False,0/10\r\n",
"ExposureBiasValue,SignedRational,False,0/10\r\n",
"MaxApertureValue,Rational,False,0/100\r\n",
"FocalLength,Rational,False,5880/1000\r\n",
"MakerNote,Undefined,True,System.Byte[]\r\n",
"DigitalZoomRatio,Rational,False,100/100\r\n",
"GPSLatitude,Rational,True,SixLabors.ImageSharp.Rational[]\r\n",
"GPSLongitude,Rational,True,SixLabors.ImageSharp.Rational[]\r\n",
"GPSAltitude,Rational,False,0\r\n",
"GPSTimestamp,Rational,True,SixLabors.ImageSharp.Rational[]\r\n",
"GPSProcessingMethod,Undefined,False,CELLID\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\r\n",
"GPSDateStamp,Ascii,False,2025:06:27\r\n"
],
"text/html": [
"<table><thead><tr><td><span>Tag</span></td><td><span>Type</span></td><td><span>IsArray</span></td><td><span>Value</span></td></tr></thead><tbody><tr><td>ImageWidth</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><details class=\"dni-treeview\"><summary><span class=\"dni-code-hint\"><code>4000</code></span></summary><div><table><thead><tr></tr></thead><tbody></tbody></table></div></details></td></tr><tr><td>ImageLength</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><details class=\"dni-treeview\"><summary><span class=\"dni-code-hint\"><code>1800</code></span></summary><div><table><thead><tr></tr></thead><tbody></tbody></table></div></details></td></tr><tr><td>Orientation</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>1</pre></div></td></tr><tr><td>ResolutionUnit</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>2</pre></div></td></tr><tr><td>YCbCrPositioning</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>2</pre></div></td></tr><tr><td>544</td><td><span>Long</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td></tr><tr><td>545</td><td><span>Long</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td></tr><tr><td>546</td><td><span>Long</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td></tr><tr><td>547</td><td><span>Long</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td></tr><tr><td>548</td><td><span>Long</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td></tr><tr><td>ExposureProgram</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td></tr><tr><td>ISOSpeedRatings</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>True</pre></div></td><td><div class=\"dni-plaintext\"><pre>[ 100 ]</pre></div></td></tr><tr><td>SensitivityType</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td></tr><tr><td>RecommendedExposureIndex</td><td><span>Long</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td></tr><tr><td>ExifVersion</td><td><span>Undefined</span></td><td><div class=\"dni-plaintext\"><pre>True</pre></div></td><td><div class=\"dni-plaintext\"><pre>[ 48, 50, 50, 48 ]</pre></div></td></tr><tr><td>ComponentsConfiguration</td><td><span>Undefined</span></td><td><div class=\"dni-plaintext\"><pre>True</pre></div></td><td><div class=\"dni-plaintext\"><pre>[ 1, 2, 3, 0 ]</pre></div></td></tr><tr><td>MeteringMode</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>2</pre></div></td></tr><tr><td>LightSource</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>255</pre></div></td></tr><tr><td>Flash</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td></tr><tr><td>SubsecTime</td><td><span>Ascii</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td>503</td></tr><tr><td colspan=\"4\"><i>(43 more)</i></td></tr></tbody></table><style>\r\n",
".dni-code-hint {\r\n",
" font-style: italic;\r\n",
" overflow: hidden;\r\n",
" white-space: nowrap;\r\n",
"}\r\n",
".dni-treeview {\r\n",
" white-space: nowrap;\r\n",
"}\r\n",
".dni-treeview td {\r\n",
" vertical-align: top;\r\n",
" text-align: start;\r\n",
"}\r\n",
"details.dni-treeview {\r\n",
" padding-left: 1em;\r\n",
"}\r\n",
"table td {\r\n",
" text-align: start;\r\n",
"}\r\n",
"table tr { \r\n",
" vertical-align: top; \r\n",
" margin: 0em 0px;\r\n",
"}\r\n",
"table tr td pre \r\n",
"{ \r\n",
" vertical-align: top !important; \r\n",
" margin: 0em 0px !important;\r\n",
"} \r\n",
"table th {\r\n",
" text-align: start;\r\n",
"}\r\n",
"</style>"
]
},
"metadata": {},
"output_type": "display_data"
}
],
"source": [
"using (Image image = Image.Load(imageFileName)) {\n",
" var exifProfile = image.Metadata.ExifProfile;\n",
" if (exifProfile != null) {\n",
" var results = exifProfile.Values.Select(p=> new {\n",
" Tag = p.Tag.ToString(),\n",
" Type = p.DataType,\n",
" IsArray = p.IsArray,\n",
" Value = p.GetValue()\n",
" });\n",
" results.DisplayTable();\n",
" } else {\n",
" Console.WriteLine(\"No EXIF metadata found.\");\n",
" }\n",
"}"
]
},
{
"cell_type": "markdown",
"id": "d097968a",
"metadata": {},
"source": [
"## Format the data usefully\n",
"\n",
"Define helper method to convert raw values to some readable output:"
]
},
{
"cell_type": "code",
"execution_count": 83,
"metadata": {
"language_info": {
"name": "polyglot-notebook"
},
"polyglot_notebook": {
"kernelName": "csharp"
}
},
"outputs": [
{
"data": {
"text/csv": [
"Tag,Type,IsArray,RawValue,FormattedValue\r\n",
"ImageWidth,Short,False,4000,4000\r\n",
"ImageLength,Short,False,1800,1800\r\n",
"Orientation,Short,False,1,\"Top Left\"\r\n",
"ResolutionUnit,Short,False,2,2\r\n",
"YCbCrPositioning,Short,False,2,2\r\n",
"544,Long,False,0,0\r\n",
"545,Long,False,0,0\r\n",
"546,Long,False,0,0\r\n",
"547,Long,False,0,0\r\n",
"548,Long,False,0,0\r\n",
"ExposureProgram,Short,False,0,Unknown\r\n",
"ISOSpeedRatings,Short,True,System.UInt16[],100\r\n",
"SensitivityType,Short,False,0,0\r\n",
"RecommendedExposureIndex,Long,False,0,0\r\n",
"ExifVersion,Undefined,True,System.Byte[],0220\r\n",
"ComponentsConfiguration,Undefined,True,System.Byte[],\"Y, Cb, Cr, -\"\r\n",
"MeteringMode,Short,False,2,\"Center Weighted Average\"\r\n",
"LightSource,Short,False,255,Unknown\r\n",
"Flash,Short,False,0,\"Not fired\"\r\n",
"SubsecTime,Ascii,False,503,503\r\n",
"SubsecTimeOriginal,Ascii,False,503,503\r\n",
"SubsecTimeDigitized,Ascii,False,503,503\r\n",
"FlashpixVersion,Undefined,True,System.Byte[],\"48 49 48 48\"\r\n",
"ColorSpace,Short,False,1,1\r\n",
"PixelXDimension,Short,False,4000,4000\r\n",
"PixelYDimension,Short,False,1800,1800\r\n",
"InteroperabilityIFD,Long,False,3891,3891\r\n",
"SensingMethod,Short,False,1,1\r\n",
"SceneType,Undefined,False,1,1\r\n",
"ExposureMode,Short,False,0,Auto\r\n",
"WhiteBalance,Short,False,0,Auto\r\n",
"FocalLengthIn35mmFilm,Short,False,0,0\r\n",
"SceneCaptureType,Short,False,0,Standard\r\n",
"GPSVersionID,Byte,True,System.Byte[],\"2 2 0 0\"\r\n",
"GPSLatitudeRef,Ascii,False,N,N\r\n",
"GPSLongitudeRef,Ascii,False,E,E\r\n",
"GPSAltitudeRef,Byte,False,0,0\r\n",
"ImageDescription,Ascii,False,,\r\n",
"Make,Ascii,False,motorola,motorola\r\n",
"Model,Ascii,False,\"motorola edge 20 lite\",\"motorola edge 20 lite\"\r\n",
"XResolution,Rational,False,72,72\r\n",
"YResolution,Rational,False,72,72\r\n",
"Software,Ascii,False,,\r\n",
"DateTime,Ascii,False,\"2025:06:27 15:57:16\",\"2025:06:27 15:57:16\"\r\n",
"549,Ascii,False,,\r\n",
"ExposureTime,Rational,False,5230/1000000,5230/1000000\r\n",
"FNumber,Rational,False,1900/1000,1.9\r\n",
"DateTimeOriginal,Ascii,False,\"2025:06:27 15:57:16\",2025-06-27T15:57:16\r\n",
"DateTimeDigitized,Ascii,False,\"2025:06:27 15:57:16\",2025-06-27T15:57:16\r\n",
"ShutterSpeedValue,SignedRational,False,5230/1000000,5230/1000000\r\n",
"ApertureValue,Rational,False,1900/1000,1900/1000\r\n",
"BrightnessValue,SignedRational,False,0/10,0/10\r\n",
"ExposureBiasValue,SignedRational,False,0/10,0/10\r\n",
"MaxApertureValue,Rational,False,0/100,0/100\r\n",
"FocalLength,Rational,False,5880/1000,5880/1000\r\n",
"MakerNote,Undefined,True,System.Byte[],\"77 79 84 0 1 1 1 1 77 0 0 85 2 0 128 0 0 0 170 3 0 0 2 85 1 0 1 0 0 0 83 0 0 0 3 85 1 0 1 0 0 0 28 0 0 0 17 85 9 0 1 0 0 0 201 1 0 0 18 85 4 0 1 0 0 0 0 0 0 0 32 85 4 0 1 0 0 0 2 0 0 0 49 85 3 0 1 0 0 0 4 0 0 0 64 85 1 0 1 0 0 0 95 0 0 0 80 85 1 0 1 0 0 0 95 0 0 0 97 85 3 0 1 0 0 0 1 0 0 0 229 85 4 0 1 0 0 0 1 1 0 0 230 85 4 0 1 0 0 0 66 3 0 0 231 85 4 0 1 0 0 0 1 1 0 0 232 85 4 0 1 0 0 0 66 3 0 0 233 85 2 0 40 0 0 0 42 4 0 0 0 96 9 0 1 0 0 0 0 0 0 0 0 100 2 0 5 0 0 0 82 4 0 0 16 100 2 0 3 0 0 0 78 79 0 0 32 100 2 0 23 0 0 0 87 4 0 0 51 100 2 0 2 0 0 0 48 0 0 0 52 100 2 0 2 0 0 0 48 0 0 0 81 100 2 0 4 0 0 0 48 46 56 0 92 100 2 0 5 0 0 0 110 4 0 0 192 100 2 0 7 0 0 0 115 4 0 0 193 100 2 0 22 0 0 0 122 4 0 0 194 100 2 0 6 0 0 0 144 4 0 0 208 100 2 0 30 0 0 0 150 4 0 0 18 102 3 0 1 0 0 0 0 0 0 0 19 102 3 0 1 0 0 0 0 0 0 0 20 102 3 0 1 0 0 0 0 0 0 0 21 102 3 0 1 0 0 0 0 0 0 0 64 102 2 0 40 0 0 0 180 4 0 0 66 102 3 0 1 0 0 0 0 0 0 0 67 102 3 0 1 0 0 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0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\"\r\n",
"DigitalZoomRatio,Rational,False,100/100,100/100\r\n",
"GPSLatitude,Rational,True,SixLabors.ImageSharp.Rational[],50°4'46.4685\"\"\r\n",
"GPSLongitude,Rational,True,SixLabors.ImageSharp.Rational[],14°37'42.775\"\"\r\n",
"GPSAltitude,Rational,False,0,0\r\n",
"GPSTimestamp,Rational,True,SixLabors.ImageSharp.Rational[],\"13 57 16\"\r\n",
"GPSProcessingMethod,Undefined,False,CELLID\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000,CELLID\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\u0000\r\n",
"GPSDateStamp,Ascii,False,2025:06:27,2025:06:27\r\n"
],
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"<table><thead><tr><td><span>Tag</span></td><td><span>Type</span></td><td><span>IsArray</span></td><td><span>RawValue</span></td><td><span>FormattedValue</span></td></tr></thead><tbody><tr><td>ImageWidth</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><details class=\"dni-treeview\"><summary><span class=\"dni-code-hint\"><code>4000</code></span></summary><div><table><thead><tr></tr></thead><tbody></tbody></table></div></details></td><td>4000</td></tr><tr><td>ImageLength</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><details class=\"dni-treeview\"><summary><span class=\"dni-code-hint\"><code>1800</code></span></summary><div><table><thead><tr></tr></thead><tbody></tbody></table></div></details></td><td>1800</td></tr><tr><td>Orientation</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>1</pre></div></td><td>Top Left</td></tr><tr><td>ResolutionUnit</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>2</pre></div></td><td>2</td></tr><tr><td>YCbCrPositioning</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>2</pre></div></td><td>2</td></tr><tr><td>544</td><td><span>Long</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td><td>0</td></tr><tr><td>545</td><td><span>Long</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td><td>0</td></tr><tr><td>546</td><td><span>Long</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td><td>0</td></tr><tr><td>547</td><td><span>Long</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td><td>0</td></tr><tr><td>548</td><td><span>Long</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td><td>0</td></tr><tr><td>ExposureProgram</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td><td>Unknown</td></tr><tr><td>ISOSpeedRatings</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>True</pre></div></td><td><div class=\"dni-plaintext\"><pre>[ 100 ]</pre></div></td><td>100</td></tr><tr><td>SensitivityType</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td><td>0</td></tr><tr><td>RecommendedExposureIndex</td><td><span>Long</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td><td>0</td></tr><tr><td>ExifVersion</td><td><span>Undefined</span></td><td><div class=\"dni-plaintext\"><pre>True</pre></div></td><td><div class=\"dni-plaintext\"><pre>[ 48, 50, 50, 48 ]</pre></div></td><td>0220</td></tr><tr><td>ComponentsConfiguration</td><td><span>Undefined</span></td><td><div class=\"dni-plaintext\"><pre>True</pre></div></td><td><div class=\"dni-plaintext\"><pre>[ 1, 2, 3, 0 ]</pre></div></td><td>Y, Cb, Cr, -</td></tr><tr><td>MeteringMode</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>2</pre></div></td><td>Center Weighted Average</td></tr><tr><td>LightSource</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>255</pre></div></td><td>Unknown</td></tr><tr><td>Flash</td><td><span>Short</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td><div class=\"dni-plaintext\"><pre>0</pre></div></td><td>Not fired</td></tr><tr><td>SubsecTime</td><td><span>Ascii</span></td><td><div class=\"dni-plaintext\"><pre>False</pre></div></td><td>503</td><td>503</td></tr><tr><td colspan=\"5\"><i>(43 more)</i></td></tr></tbody></table><style>\r\n",
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"source": [
"public static string ToPrettyString(IExifValue exif) {\n",
"\n",
" static string GetLabel(object value, string labels) {\n",
" var labelArray = labels.Split(',').Select(s => s.Trim()).ToArray();\n",
" var index = (ushort)value;\n",
" return index < 0 || index >= labelArray.LongLength ? labelArray[0] : labelArray[index];\n",
" }\n",
"\n",
" static IEnumerable<string> GetFlashFlags(object value) {\n",
" var flags = (ushort)value;\n",
" yield return (flags & 1) != 0 ? \"Fired\" : \"Not fired\";\n",
" if ((flags & 2) != 0) yield return \"Strobe return light detected\";\n",
" if ((flags & 4) != 0) yield return \"Strobe return light not detected\";\n",
" if ((flags & 8) != 0) yield return \"Compulsory flash mode\";\n",
" if ((flags & 16) != 0) yield return \"Auto mode\";\n",
" if ((flags & 32) != 0) yield return \"No flash function\";\n",
" if ((flags & 64) != 0) yield return \"Red eye reduction mode\";\n",
" }\n",
"\n",
" static string GetGpsCoordinate(object value) {\n",
" try {\n",
" var array = value as Rational[];\n",
" return $\"{array[0]}°{array[1]}'{System.Xml.XmlConvert.ToString(array[2].ToDouble())}\\\"\";\n",
" } catch (Exception) {\n",
" return null;\n",
" }\n",
" }\n",
"\n",
" // Special cases\n",
" if (exif.Tag == ExifTag.Orientation) return GetLabel(exif.GetValue(), \"Unknown, Top Left, Top Right, Bottom Right, Bottom Left, Left Top, Right Top, Right Bottom, Left Bottom\");\n",
" if (exif.Tag == ExifTag.ExposureProgram) return GetLabel(exif.GetValue(), \"Unknown, Manual, Auto, Aperture priority, Shutter speed priority, Creative, Action, Portrait, Landscape, Bulb\");\n",
" if (exif.Tag == ExifTag.MeteringMode) return GetLabel(exif.GetValue(), \"Unknown, Average, Center Weighted Average, Spot, Multi Spot, Multi Segment, Partial\");\n",
" if (exif.Tag == ExifTag.LightSource) return GetLabel(exif.GetValue(), \"Unknown, Daylight, Fluorescent, Tungsten, Flash, Sunny, Cloudy, Shade, Daylight Fluorescent, Day White Fluorescent, Cool White Fluorescent, White Fluorescent, Warm White Fluorescent, Standard Light A, Standard Light B, StandardLight C, D55, D65, D75, D50, ISO Studio Tungsten\");\n",
" if (exif.Tag == ExifTag.ExposureMode) return GetLabel(exif.GetValue(), \"Auto, Manual, Auto bracket\");\n",
" if (exif.Tag == ExifTag.WhiteBalance) return GetLabel(exif.GetValue(), \"Auto, Manual\");\n",
" if (exif.Tag == ExifTag.FNumber) return ((Rational)exif.GetValue()).ToDouble().ToString(\"N1\", System.Globalization.CultureInfo.InvariantCulture);\n",
" if (exif.Tag == ExifTag.SceneCaptureType) return GetLabel(exif.GetValue(), \"Standard, Landscape, Portrait, Night, Other\");\n",
" if (exif.Tag == ExifTag.DateTimeOriginal || exif.Tag == ExifTag.DateTimeDigitized) return DateTime.TryParseExact(exif.GetValue().ToString(), @\"yyyy\\:MM\\:dd HH\\:mm\\:ss\", null, System.Globalization.DateTimeStyles.None, out var dt) ? System.Xml.XmlConvert.ToString(dt, System.Xml.XmlDateTimeSerializationMode.RoundtripKind) : null;\n",
" if (exif.Tag == ExifTag.Flash) return string.Join(\", \", GetFlashFlags(exif.GetValue()));\n",
" if (exif.Tag == ExifTag.GPSDestLatitude || exif.Tag == ExifTag.GPSDestLongitude || exif.Tag == ExifTag.GPSLatitude || exif.Tag == ExifTag.GPSLongitude) return GetGpsCoordinate(exif.GetValue());\n",
" if (exif.Tag == ExifTag.ExifVersion) return System.Text.Encoding.UTF8.GetString((byte[])exif.GetValue());\n",
" if (exif.Tag == ExifTag.ComponentsConfiguration) return string.Join(\", \", ((byte[])exif.GetValue()).Select(b => GetLabel((ushort)b, \"-, Y, Cb, Cr, R, G, B\")));\n",
"\n",
" // Array of generic values\n",
" if (exif.IsArray) {\n",
" var s = string.Empty;\n",
" foreach (var item in exif.GetValue() as Array) {\n",
" s += item.ToString() + \" \";\n",
" }\n",
" return s.Trim();\n",
" }\n",
"\n",
" // If no special case occurred, just return ToString()\n",
" return exif.GetValue().ToString();\n",
"}\n",
"\n",
"// Use the helper method to display data\n",
"using (Image image = Image.Load(imageFileName)) {\n",
" var exifProfile = image.Metadata.ExifProfile;\n",
" if (exifProfile != null) {\n",
" var results = exifProfile.Values.Select(p=> new {\n",
" Tag = p.Tag.ToString(),\n",
" Type = p.DataType,\n",
" IsArray = p.IsArray,\n",
" RawValue = p.GetValue(),\n",
" FormattedValue = ToPrettyString(p),\n",
" });\n",
" results.DisplayTable();\n",
" } else {\n",
" Console.WriteLine(\"No EXIF metadata found.\");\n",
" }\n",
"}"
]
}
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