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+<h1> Package jpeg  </h1>     <ul id="short-nav">
+<li><code>import "image/jpeg"</code></li>
+<li><a href="#pkg-overview" class="overviewLink">Overview</a></li>
+<li><a href="#pkg-index" class="indexLink">Index</a></li>
+</ul>     <h2 id="pkg-overview">Overview </h2> <p>Package jpeg implements a JPEG image decoder and encoder. </p>
+<p>JPEG is defined in ITU-T T.81: <a href="https://www.w3.org/Graphics/JPEG/itu-t81.pdf">https://www.w3.org/Graphics/JPEG/itu-t81.pdf</a>. </p>     <h2 id="pkg-index">Index </h2>  <ul id="manual-nav">
+<li><a href="#pkg-constants">Constants</a></li>
+<li><a href="#Decode">func Decode(r io.Reader) (image.Image, error)</a></li>
+<li><a href="#DecodeConfig">func DecodeConfig(r io.Reader) (image.Config, error)</a></li>
+<li><a href="#Encode">func Encode(w io.Writer, m image.Image, o *Options) error</a></li>
+<li><a href="#FormatError">type FormatError</a></li>
+<li> <a href="#FormatError.Error">func (e FormatError) Error() string</a>
+</li>
+<li><a href="#Options">type Options</a></li>
+<li><a href="#Reader">type Reader</a></li>
+<li><a href="#UnsupportedError">type UnsupportedError</a></li>
+<li> <a href="#UnsupportedError.Error">func (e UnsupportedError) Error() string</a>
+</li>
+</ul> <h3>Package files</h3> <p>  <span>fdct.go</span> <span>huffman.go</span> <span>idct.go</span> <span>reader.go</span> <span>scan.go</span> <span>writer.go</span>  </p>   <h2 id="pkg-constants">Constants</h2> <p>DefaultQuality is the default quality encoding parameter. </p>
+<pre data-language="go">const DefaultQuality = 75</pre> <h2 id="Decode">func <span>Decode</span>  </h2> <pre data-language="go">func Decode(r io.Reader) (image.Image, error)</pre> <p>Decode reads a JPEG image from r and returns it as an <span>image.Image</span>. </p>
+<h2 id="DecodeConfig">func <span>DecodeConfig</span>  </h2> <pre data-language="go">func DecodeConfig(r io.Reader) (image.Config, error)</pre> <p>DecodeConfig returns the color model and dimensions of a JPEG image without decoding the entire image. </p>
+<h2 id="Encode">func <span>Encode</span>  </h2> <pre data-language="go">func Encode(w io.Writer, m image.Image, o *Options) error</pre> <p>Encode writes the Image m to w in JPEG 4:2:0 baseline format with the given options. Default parameters are used if a nil *<a href="#Options">Options</a> is passed. </p>
+<h2 id="FormatError">type <span>FormatError</span>  </h2> <p>A FormatError reports that the input is not a valid JPEG. </p>
+<pre data-language="go">type FormatError string</pre> <h3 id="FormatError.Error">func (FormatError) <span>Error</span>  </h3> <pre data-language="go">func (e FormatError) Error() string</pre> <h2 id="Options">type <span>Options</span>  </h2> <p>Options are the encoding parameters. Quality ranges from 1 to 100 inclusive, higher is better. </p>
+<pre data-language="go">type Options struct {
+    Quality int
+}
+</pre> <h2 id="Reader">type <span>Reader</span>  </h2> <p>Deprecated: Reader is not used by the <span>image/jpeg</span> package and should not be used by others. It is kept for compatibility. </p>
+<pre data-language="go">type Reader interface {
+    io.ByteReader
+    io.Reader
+}</pre> <h2 id="UnsupportedError">type <span>UnsupportedError</span>  </h2> <p>An UnsupportedError reports that the input uses a valid but unimplemented JPEG feature. </p>
+<pre data-language="go">type UnsupportedError string</pre> <h3 id="UnsupportedError.Error">func (UnsupportedError) <span>Error</span>  </h3> <pre data-language="go">func (e UnsupportedError) Error() string</pre><div class="_attribution">
+  <p class="_attribution-p">
+    &copy; Google, Inc.<br>Licensed under the Creative Commons Attribution License 3.0.<br>
+    <a href="http://golang.org/pkg/image/jpeg/" class="_attribution-link">http://golang.org/pkg/image/jpeg/</a>
+  </p>
+</div>