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 <p class="text-center"><a href="identify.html#usage">Example Usage</a> • <a href="identify.html#options">Option Summary</a></p>

 <p class="lead magick-description">The <code>identify</code> program describes the format and characteristics of one or more image files. It also reports if an image is incomplete or corrupt. The information returned includes the image number, the file name, the width and height of the image, whether the image is colormapped or not, the number of colors in the image, the number of bytes in the image, the format of the image (JPEG, PNM, etc.), and finally the number of seconds it took to read and process the image.  Many more attributes are available with the verbose option.  See <a href="../www/command-line-processing.html">Command Line Processing</a> for advice on how to structure your <code>identify</code> command or see below for example usages of the command.</p>

 <h2><a class="anchor" id="usage"></a>Example Usage</h2>

 <p>We list a few examples of the <code>identify</code> command here to illustrate its usefulness and ease of use. To get started, lets identify an image in the JPEG format:</p>

 <pre class="highlight"><code>-> magick identify rose.jpg
 rose.jpg JPEG 70x46 70x46+0+0 8-bit sRGB 2.36KB 0.000u 0:00.000
 </code></pre>

 <p>Next, we look at the same image in greater detail:</p>

 <pre class="pre-scrollable"><code>-> magick identify -verbose rose.jpg
 Image: rose.jpg
   Format: JPEG (Joint Photographic Experts Group JFIF format)
   Mime type: images/jpeg
   Class: DirectClass
   Geometry: 70x46+0+0
   Units: Undefined
   Type: TrueColor
   Endianess: Undefined
   Colorspace: sRGB
   Depth: 8-bit
   Channel depth:
     Red: 8-bit
     Green: 8-bit
     Blue: 8-bit
   Channel statistics:
     Pixels: 3220
     Red:
       min: 31 (0.121569)
       max: 255 (1)
       mean: 145.557 (0.570814)
       standard deviation: 69.1933 (0.271346)
       kurtosis: -1.38945
       skewness: 0.138955
       entropy: 0.970683
     Green:
       min: 27 (0.105882)
       max: 255 (1)
       mean: 89.246 (0.349984)
       standard deviation: 52.4608 (0.205729)
       kurtosis: 2.60139
       skewness: 1.80708
       entropy: 0.869711
     Blue:
       min: 21 (0.0823529)
       max: 255 (1)
       mean: 80.4196 (0.315371)
       standard deviation: 54.9377 (0.215442)
       kurtosis: 2.93417
       skewness: 1.95544
       entropy: 0.853176
   Image statistics:
     Overall:
       min: 21 (0.0823529)
       max: 255 (1)
       mean: 105.074 (0.412056)
       standard deviation: 58.8639 (0.230839)
       kurtosis: 1.37788
       skewness: 1.48073
       entropy: 0.897856
   Rendering intent: Perceptual
   Gamma: 0.454545
   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)
   Alpha color: grey74
   Background color: white
   Border color: srgb(223,223,223)
   Transparent color: none
   Interlace: None
   Intensity: Undefined
   Compose: Over
   Page geometry: 70x46+0+0
   Dispose: Undefined
   Iterations: 0
   Compression: JPEG
   Quality: 92
   Orientation: Undefined
   Properties:
     jpeg:colorspace: 2
     jpeg:sampling-factor: 1x1,1x1,1x1
     signature: aea65c9b557d779d142f26d04abe7008bab50f1e9647faae20afdcc6c15140d5
   Artifacts:
     verbose: true
   Tainted: False
   Filesize: 2.65KB
   Number pixels: 3.22K
   User time: 0.000u
   Elapsed time: 0:01.000
   Version: ImageMagick 7.0.4-8 Q16 x86_64 http://imagemagick.org
 </code></pre>

 <p>To get the print size in inches of an image at 72 DPI, use:</p>

 <pre class="highlight"><code>-> magick identify -format "%[fx:w/72] by %[fx:h/72] inches" document.png
 8.5 x 11 inches
 </code></pre>

 <p>The depth and dimensions of a raw image must be specified on the command line:</p>

 <pre class="highlight"><code>-> magick identify -depth 8 -size 640x480 image.raw
 image.raw RGB 640x480 sRGB 9kb 0.000u 0:01
 </code></pre>

 <p>Here we display the image texture features, moments, perceptual hash, and the number of unique colors in the image:</p>

 <pre class="highlight"><code>-> magick identify -verbose -features 1 -moments -unique image.png
 </code></pre>

 <p>Here is a special define that outputs the location of the minimum or maximum pixel of the image:</p>

 <pre class="highlight"><code>magick identify -precision 5 -define identify:locate=maximum -define identify:limit=3 image.png
 </code></pre>

 <p>You can find additional examples of using <code>identify</code> in <a href="../Usage/">Examples of ImageMagick Usage</a>.</p>

 <h2><a class="anchor" id="options"></a>Option Summary</h2>

 <p>The <code>identify</code> command recognizes these options.  Click on an option to get more details about how that option works.</p>

 <table class="table table-sm table-striped">
   <tbody>
   <tr>
     <th align="left">Option</th>
     <th align="left">Description</th>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#alpha">-alpha</a></td>
     <td>on, activate, off, deactivate, set, opaque, copy",
 transparent, extract, background, or shape the alpha channel</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#antialias">-antialias</a></td>
     <td>remove pixel-aliasing</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#authenticate">-authenticate <var>value</var></a></td>
     <td>decrypt image with this password</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#channel">-channel <var>type</var></a></td>
     <td>apply option to select image channels</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#clip">-clip</a></td>
     <td>clip along the first path from the 8BIM profile</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#clip-mask">-clip-mask</a> <var>filename</var></td>
     <td>associate clip mask with the image</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#clip-path">-clip-path <var>id</var></a></td>
     <td>clip along a named path from the 8BIM profile</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#colorspace">-colorspace <var>type</var></a></td>
     <td>set image colorspace</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#crop">-crop <var>geometry</var></a></td>
     <td>crop the image</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#debug">-debug <var>events</var></a></td>
     <td>display copious debugging information</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#define">-define <var>format:option</var></a></td>
     <td>define one or more image format options</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#density">-density <var>geometry</var></a></td>
     <td>horizontal and vertical density of the image</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#depth">-depth <var>value</var></a></td>
     <td>image depth</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#endian">-endian <var>type</var></a></td>
     <td>endianness (MSB or LSB) of the image</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#extract">-extract <var>geometry</var></a></td>
     <td>extract area from image</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#features">-features <var>distance</var></a></td>
     <td>analyze image features (e.g. contract, correlations, etc.).</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#format_identify_">-format <var>string</var></a></td>
     <td>output formatted image characteristics</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#gamma">-gamma <var>value</var></a></td>
     <td>level of gamma correction</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#grayscale">-grayscale <var>method</var></a></td>
     <td>convert image to grayscale</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#help">-help</a></td>
     <td>print program options</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#interlace">-interlace <var>type</var></a></td>
     <td>type of image interlacing scheme</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#interpolate">-interpolate <var>method</var></a></td>
     <td>pixel color interpolation method</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#limit">-limit <var>type value</var></a></td>
     <td>pixel cache resource limit</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#list">-list <var>type</var></a></td>
     <td>Color, Configure, Delegate, Format, Magic, Module, Resource, or Type</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#log">-log <var>format</var></a></td>
     <td>format of debugging information</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#mask">-mask <var>filename</var></a></td>
     <td>associate a mask with the image</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#moments">-moments</a></td>
     <td>display image moments and perceptual hash.</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#monitor">-monitor</a></td>
     <td>monitor progress</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#negate">-negate</a></td>
     <td>replace each pixel with its complementary color </td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#precision">-precision <var>value</var></a></td>
     <td>set the maximum number of significant digits to be printed</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#quiet">-quiet</a></td>
     <td>suppress all warning messages</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#regard-warnings">-regard-warnings</a></td>
     <td>pay attention to warning messages.</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
     <td>settings remain in effect until parenthesis boundary.</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#sampling-factor">-sampling-factor <var>geometry</var></a></td>
     <td>horizontal and vertical sampling factor</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#set">-set <var>attribute value</var></a></td>
     <td>set an image attribute</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#size">-size <var>geometry</var></a></td>
     <td>width and height of image</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#strip">-strip</a></td>
     <td>strip image of all profiles and comments</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#unique">-unique</a></td>
     <td>display image the number of unique colors in the image.</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#units">-units <var>type</var></a></td>
     <td>the units of image resolution</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#verbose">-verbose</a></td>
     <td>print detailed information about the image</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#version">-version</a></td>
     <td>print version information</td>
   </tr>

   <tr>
     <td><a href="../www/command-line-options.html#virtual-pixel">-virtual-pixel <var>method</var></a></td>
     <td>access method for pixels outside the boundaries of the image</td>
   </tr>

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	<p class="text-center"><a href="identify.html#usage">Example Usage</a> • <a href="identify.html#options">Option Summary</a></p>

	<p class="lead magick-description">The <code>identify</code> program describes the format and characteristics of one or more image files. It also reports if an image is incomplete or corrupt. The information returned includes the image number, the file name, the width and height of the image, whether the image is colormapped or not, the number of colors in the image, the number of bytes in the image, the format of the image (JPEG, PNM, etc.), and finally the number of seconds it took to read and process the image. Many more attributes are available with the verbose option. See <a href="../www/command-line-processing.html">Command Line Processing</a> for advice on how to structure your <code>identify</code> command or see below for example usages of the command.</p>

	<h2><a class="anchor" id="usage"></a>Example Usage</h2>

	<p>We list a few examples of the <code>identify</code> command here to illustrate its usefulness and ease of use. To get started, lets identify an image in the JPEG format:</p>

	<pre class="highlight"><code>-> magick identify rose.jpg
	rose.jpg JPEG 70x46 70x46+0+0 8-bit sRGB 2.36KB 0.000u 0:00.000
	</code></pre>

	<p>Next, we look at the same image in greater detail:</p>

	<pre class="pre-scrollable"><code>-> magick identify -verbose rose.jpg
	Image: rose.jpg
	Format: JPEG (Joint Photographic Experts Group JFIF format)
	Mime type: images/jpeg
	Class: DirectClass
	Geometry: 70x46+0+0
	Units: Undefined
	Type: TrueColor
	Endianess: Undefined
	Colorspace: sRGB
	Depth: 8-bit
	Channel depth:
	Red: 8-bit
	Green: 8-bit
	Blue: 8-bit
	Channel statistics:
	Pixels: 3220
	Red:
	min: 31 (0.121569)
	max: 255 (1)
	mean: 145.557 (0.570814)
	standard deviation: 69.1933 (0.271346)
	kurtosis: -1.38945
	skewness: 0.138955
	entropy: 0.970683
	Green:
	min: 27 (0.105882)
	max: 255 (1)
	mean: 89.246 (0.349984)
	standard deviation: 52.4608 (0.205729)
	kurtosis: 2.60139
	skewness: 1.80708
	entropy: 0.869711
	Blue:
	min: 21 (0.0823529)
	max: 255 (1)
	mean: 80.4196 (0.315371)
	standard deviation: 54.9377 (0.215442)
	kurtosis: 2.93417
	skewness: 1.95544
	entropy: 0.853176
	Image statistics:
	Overall:
	min: 21 (0.0823529)
	max: 255 (1)
	mean: 105.074 (0.412056)
	standard deviation: 58.8639 (0.230839)
	kurtosis: 1.37788
	skewness: 1.48073
	entropy: 0.897856
	Rendering intent: Perceptual
	Gamma: 0.454545
	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)
	Alpha color: grey74
	Background color: white
	Border color: srgb(223,223,223)
	Transparent color: none
	Interlace: None
	Intensity: Undefined
	Compose: Over
	Page geometry: 70x46+0+0
	Dispose: Undefined
	Iterations: 0
	Compression: JPEG
	Quality: 92
	Orientation: Undefined
	Properties:
	jpeg:colorspace: 2
	jpeg:sampling-factor: 1x1,1x1,1x1
	signature: aea65c9b557d779d142f26d04abe7008bab50f1e9647faae20afdcc6c15140d5
	Artifacts:
	verbose: true
	Tainted: False
	Filesize: 2.65KB
	Number pixels: 3.22K
	User time: 0.000u
	Elapsed time: 0:01.000
	Version: ImageMagick 7.0.4-8 Q16 x86_64 http://imagemagick.org
	</code></pre>

	<p>To get the print size in inches of an image at 72 DPI, use:</p>

	<pre class="highlight"><code>-> magick identify -format "%[fx:w/72] by %[fx:h/72] inches" document.png
	8.5 x 11 inches
	</code></pre>

	<p>The depth and dimensions of a raw image must be specified on the command line:</p>

	<pre class="highlight"><code>-> magick identify -depth 8 -size 640x480 image.raw
	image.raw RGB 640x480 sRGB 9kb 0.000u 0:01
	</code></pre>

	<p>Here we display the image texture features, moments, perceptual hash, and the number of unique colors in the image:</p>

	<pre class="highlight"><code>-> magick identify -verbose -features 1 -moments -unique image.png
	</code></pre>

	<p>Here is a special define that outputs the location of the minimum or maximum pixel of the image:</p>

	<pre class="highlight"><code>magick identify -precision 5 -define identify:locate=maximum -define identify:limit=3 image.png
	</code></pre>

	<p>You can find additional examples of using <code>identify</code> in <a href="../Usage/">Examples of ImageMagick Usage</a>.</p>

	<h2><a class="anchor" id="options"></a>Option Summary</h2>

	<p>The <code>identify</code> command recognizes these options. Click on an option to get more details about how that option works.</p>

	<table class="table table-sm table-striped">
	<tbody>
	<tr>
	<th align="left">Option</th>
	<th align="left">Description</th>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#alpha">-alpha</a></td>
	<td>on, activate, off, deactivate, set, opaque, copy",
	transparent, extract, background, or shape the alpha channel</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#antialias">-antialias</a></td>
	<td>remove pixel-aliasing</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#authenticate">-authenticate <var>value</var></a></td>
	<td>decrypt image with this password</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#channel">-channel <var>type</var></a></td>
	<td>apply option to select image channels</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#clip">-clip</a></td>
	<td>clip along the first path from the 8BIM profile</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#clip-mask">-clip-mask</a> <var>filename</var></td>
	<td>associate clip mask with the image</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#clip-path">-clip-path <var>id</var></a></td>
	<td>clip along a named path from the 8BIM profile</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#colorspace">-colorspace <var>type</var></a></td>
	<td>set image colorspace</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#crop">-crop <var>geometry</var></a></td>
	<td>crop the image</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#debug">-debug <var>events</var></a></td>
	<td>display copious debugging information</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#define">-define <var>format:option</var></a></td>
	<td>define one or more image format options</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#density">-density <var>geometry</var></a></td>
	<td>horizontal and vertical density of the image</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#depth">-depth <var>value</var></a></td>
	<td>image depth</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#endian">-endian <var>type</var></a></td>
	<td>endianness (MSB or LSB) of the image</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#extract">-extract <var>geometry</var></a></td>
	<td>extract area from image</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#features">-features <var>distance</var></a></td>
	<td>analyze image features (e.g. contract, correlations, etc.).</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#format_identify_">-format <var>string</var></a></td>
	<td>output formatted image characteristics</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#gamma">-gamma <var>value</var></a></td>
	<td>level of gamma correction</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#grayscale">-grayscale <var>method</var></a></td>
	<td>convert image to grayscale</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#help">-help</a></td>
	<td>print program options</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#interlace">-interlace <var>type</var></a></td>
	<td>type of image interlacing scheme</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#interpolate">-interpolate <var>method</var></a></td>
	<td>pixel color interpolation method</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#limit">-limit <var>type value</var></a></td>
	<td>pixel cache resource limit</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#list">-list <var>type</var></a></td>
	<td>Color, Configure, Delegate, Format, Magic, Module, Resource, or Type</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#log">-log <var>format</var></a></td>
	<td>format of debugging information</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#mask">-mask <var>filename</var></a></td>
	<td>associate a mask with the image</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#moments">-moments</a></td>
	<td>display image moments and perceptual hash.</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#monitor">-monitor</a></td>
	<td>monitor progress</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#negate">-negate</a></td>
	<td>replace each pixel with its complementary color </td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#precision">-precision <var>value</var></a></td>
	<td>set the maximum number of significant digits to be printed</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#quiet">-quiet</a></td>
	<td>suppress all warning messages</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#regard-warnings">-regard-warnings</a></td>
	<td>pay attention to warning messages.</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
	<td>settings remain in effect until parenthesis boundary.</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#sampling-factor">-sampling-factor <var>geometry</var></a></td>
	<td>horizontal and vertical sampling factor</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#set">-set <var>attribute value</var></a></td>
	<td>set an image attribute</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#size">-size <var>geometry</var></a></td>
	<td>width and height of image</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#strip">-strip</a></td>
	<td>strip image of all profiles and comments</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#unique">-unique</a></td>
	<td>display image the number of unique colors in the image.</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#units">-units <var>type</var></a></td>
	<td>the units of image resolution</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#verbose">-verbose</a></td>
	<td>print detailed information about the image</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#version">-version</a></td>
	<td>print version information</td>
	</tr>

	<tr>
	<td><a href="../www/command-line-options.html#virtual-pixel">-virtual-pixel <var>method</var></a></td>
	<td>access method for pixels outside the boundaries of the image</td>
	</tr>

	</tbody>
	</table>

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