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172 lines
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>OpenJPEG: IMAGE - Implementation of operations on images</title>
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<div id="projectname">OpenJPEG
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 <span id="projectnumber">2.4.0</span>
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<li><a href="annotated.html"><span>Data Structures</span></a></li>
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<a href="#func-members">Functions</a> </div>
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<div class="headertitle">
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<div class="title">IMAGE - Implementation of operations on images</div> </div>
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</div><!--header-->
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<div class="contents">
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:ga83035109ca4e81f9d90451adf6d975b4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="openjpeg_8h.html#a5c557180c59d54a2f1d29e8639687aa4">opj_image_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i_m_a_g_e.html#ga83035109ca4e81f9d90451adf6d975b4">opj_image_create0</a> (void)</td></tr>
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<tr class="memdesc:ga83035109ca4e81f9d90451adf6d975b4"><td class="mdescLeft"> </td><td class="mdescRight">Create an empty image. <a href="#ga83035109ca4e81f9d90451adf6d975b4">More...</a><br /></td></tr>
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<tr class="separator:ga83035109ca4e81f9d90451adf6d975b4"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaa7b8e2985cd630021497528669063b7c"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i_m_a_g_e.html#gaa7b8e2985cd630021497528669063b7c">opj_image_comp_header_update</a> (<a class="el" href="openjpeg_8h.html#a5c557180c59d54a2f1d29e8639687aa4">opj_image_t</a> *p_image, const struct <a class="el" href="structopj__cp.html">opj_cp</a> *p_cp)</td></tr>
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<tr class="memdesc:gaa7b8e2985cd630021497528669063b7c"><td class="mdescLeft"> </td><td class="mdescRight">Updates the components characteristics of the image from the coding parameters. <a href="#gaa7b8e2985cd630021497528669063b7c">More...</a><br /></td></tr>
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<tr class="separator:gaa7b8e2985cd630021497528669063b7c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga3802de36855e5331f4d6c04bc1b732a3"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___i_m_a_g_e.html#ga3802de36855e5331f4d6c04bc1b732a3">opj_copy_image_header</a> (const <a class="el" href="openjpeg_8h.html#a5c557180c59d54a2f1d29e8639687aa4">opj_image_t</a> *p_image_src, <a class="el" href="openjpeg_8h.html#a5c557180c59d54a2f1d29e8639687aa4">opj_image_t</a> *p_image_dest)</td></tr>
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<tr class="memdesc:ga3802de36855e5331f4d6c04bc1b732a3"><td class="mdescLeft"> </td><td class="mdescRight">Copy only header of image and its component header (no data are copied) if dest image have data, they will be freed. <a href="#ga3802de36855e5331f4d6c04bc1b732a3">More...</a><br /></td></tr>
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<tr class="separator:ga3802de36855e5331f4d6c04bc1b732a3"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<h2 class="groupheader">Function Documentation</h2>
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<a class="anchor" id="ga3802de36855e5331f4d6c04bc1b732a3"></a>
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<tr>
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<td class="memname">void opj_copy_image_header </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="openjpeg_8h.html#a5c557180c59d54a2f1d29e8639687aa4">opj_image_t</a> * </td>
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<td class="paramname"><em>p_image_src</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="openjpeg_8h.html#a5c557180c59d54a2f1d29e8639687aa4">opj_image_t</a> * </td>
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<td class="paramname"><em>p_image_dest</em> </td>
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<td></td>
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<td>)</td>
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</div><div class="memdoc">
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<p>Copy only header of image and its component header (no data are copied) if dest image have data, they will be freed. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">p_image_src</td><td>the src image </td></tr>
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<tr><td class="paramname">p_image_dest</td><td>the dest image </td></tr>
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</table>
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</dd>
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<p>References <a class="el" href="structopj__image.html#a0a905c725270c4a7085fbe1edea994c2">opj_image::color_space</a>, <a class="el" href="structopj__image.html#a6b52b100c934697a29446af5c3e0fa00">opj_image::comps</a>, <a class="el" href="structopj__image__comp.html#ad676bf364b0c8fc889e97cc684ce95d0">opj_image_comp::data</a>, <a class="el" href="structopj__image.html#a1b62a25bd7603c6747aa3edd036401c1">opj_image::icc_profile_buf</a>, <a class="el" href="structopj__image.html#a0412d0a6696e7b6ace224c5111cf6be2">opj_image::icc_profile_len</a>, <a class="el" href="structopj__image.html#ac63093741ed0c70b9c0a8ee3070cbce6">opj_image::numcomps</a>, <a class="el" href="group___m_i_s_c.html#ga2bd00e2482ae36197631bde0665cfdfe">opj_free()</a>, <a class="el" href="openjpeg_8c.html#a53a2908ba063e90755b9449001194f88">opj_image_data_free()</a>, <a class="el" href="group___m_i_s_c.html#ga49c70931cbed786f6eef5f095bcb2917">opj_malloc()</a>, <a class="el" href="structopj__image.html#a0d01041cfbba0d40ab38836a35544e09">opj_image::x0</a>, <a class="el" href="structopj__image.html#a7a27deb6bf174dd57ee473d1d514f8ef">opj_image::x1</a>, <a class="el" href="structopj__image.html#a9813bacf1939346629c07262c61c8e74">opj_image::y0</a>, and <a class="el" href="structopj__image.html#a80fd916819080f959a601b0089c4c69a">opj_image::y1</a>.</p>
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<p>Referenced by <a class="el" href="j2k_8h.html#a09f2c6c83d8066e1db9ab66fed58d9c8">opj_j2k_decode()</a>, <a class="el" href="j2k_8h.html#a60371d3609364bf033e8c244599abf6f">opj_j2k_get_tile()</a>, <a class="el" href="j2k_8h.html#a34c49b256edcdbf036492dfa635284d7">opj_j2k_read_header()</a>, and <a class="el" href="j2k_8h.html#accea6429e4f466250b095ee3fb94805c">opj_j2k_start_compress()</a>.</p>
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<a class="anchor" id="gaa7b8e2985cd630021497528669063b7c"></a>
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<td class="memname">void opj_image_comp_header_update </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="openjpeg_8h.html#a5c557180c59d54a2f1d29e8639687aa4">opj_image_t</a> * </td>
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<td class="paramname"><em>p_image_header</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">const struct <a class="el" href="structopj__cp.html">opj_cp</a> * </td>
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<td class="paramname"><em>p_cp</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</div><div class="memdoc">
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<p>Updates the components characteristics of the image from the coding parameters. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">p_image_header</td><td>the image header to update. </td></tr>
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<tr><td class="paramname">p_cp</td><td>the coding parameters from which to update the image. </td></tr>
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</table>
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</dd>
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</dl>
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<p>References <a class="el" href="structopj__image.html#a6b52b100c934697a29446af5c3e0fa00">opj_image::comps</a>, <a class="el" href="structopj__image__comp.html#a0805d2f69bb770ff022c164aeda22685">opj_image_comp::dx</a>, <a class="el" href="structopj__image__comp.html#af9d6fd62a2b8bdd9fd162ce403eb0f10">opj_image_comp::dy</a>, <a class="el" href="structopj__image__comp.html#ab0353b06d4f8e707fc0fb85237537e82">opj_image_comp::factor</a>, <a class="el" href="structopj__image__comp.html#a11ecb361a0c49b482c90573a868cc8dc">opj_image_comp::h</a>, <a class="el" href="structopj__image.html#ac63093741ed0c70b9c0a8ee3070cbce6">opj_image::numcomps</a>, <a class="el" href="group___o_p_j___i_n_t_m_a_t_h.html#gab9aad885f5c9bc9e39420003b2b32fe5">opj_uint_adds()</a>, <a class="el" href="group___o_p_j___i_n_t_m_a_t_h.html#gae4b2e5a7c8b8f09faacc4a895f866ea1">opj_uint_ceildiv()</a>, <a class="el" href="group___o_p_j___i_n_t_m_a_t_h.html#gae592eb75f221decddec51834b6c4177d">opj_uint_ceildivpow2()</a>, <a class="el" href="group___o_p_j___i_n_t_m_a_t_h.html#ga2c3eb35fddab83fef25256485b926fc0">opj_uint_max()</a>, <a class="el" href="group___o_p_j___i_n_t_m_a_t_h.html#ga06c1c4470f9765a3ed04963b0daa111a">opj_uint_min()</a>, <a class="el" href="structopj__cp.html#aae555943d0b5aeb0c6b9a5d1e25f448b">opj_cp::tdx</a>, <a class="el" href="structopj__cp.html#a0fd9a036bf63787fe10a26f9d51a9da2">opj_cp::tdy</a>, <a class="el" href="structopj__cp.html#a30a7cf50ba11fe5524888d3b38bd4a09">opj_cp::th</a>, <a class="el" href="structopj__cp.html#abacc172096044123cfa0a7b027cd457f">opj_cp::tw</a>, <a class="el" href="structopj__cp.html#aeed9ee798ec24aaa27baa3088b3b3f14">opj_cp::tx0</a>, <a class="el" href="structopj__cp.html#a59415df77f13078e76678123415f403e">opj_cp::ty0</a>, <a class="el" href="structopj__image__comp.html#a59225121158d5bc911838e5b05779cdb">opj_image_comp::w</a>, <a class="el" href="structopj__image__comp.html#a1f897a8932374ca64cd4d7a256008ea3">opj_image_comp::x0</a>, <a class="el" href="structopj__image.html#a0d01041cfbba0d40ab38836a35544e09">opj_image::x0</a>, <a class="el" href="structopj__image.html#a7a27deb6bf174dd57ee473d1d514f8ef">opj_image::x1</a>, <a class="el" href="structopj__image__comp.html#aa8dff1eb1f11e9f21b0ddefe14ad3fc6">opj_image_comp::y0</a>, <a class="el" href="structopj__image.html#a9813bacf1939346629c07262c61c8e74">opj_image::y0</a>, and <a class="el" href="structopj__image.html#a80fd916819080f959a601b0089c4c69a">opj_image::y1</a>.</p>
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<p>Referenced by <a class="el" href="group___j2_k.html#gaa91c21b73fc17028a77ba44d3987f17a">opj_j2k_read_siz()</a>.</p>
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<a class="anchor" id="ga83035109ca4e81f9d90451adf6d975b4"></a>
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<div class="memitem">
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<td class="memname"><a class="el" href="openjpeg_8h.html#a5c557180c59d54a2f1d29e8639687aa4">opj_image_t</a>* opj_image_create0 </td>
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<td>(</td>
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<td class="paramtype">void </td>
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<td class="paramname"></td><td>)</td>
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<td></td>
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<p>Create an empty image. </p>
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<dl class="section return"><dt>Returns</dt><dd>returns an empty image if successful, returns NULL otherwise </dd></dl>
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<p>References <a class="el" href="group___m_i_s_c.html#ga7fe6dfcb0a623dbec30daf0f48624bf7">opj_calloc()</a>.</p>
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<p>Referenced by <a class="el" href="j2k_8h.html#a09f2c6c83d8066e1db9ab66fed58d9c8">opj_j2k_decode()</a>, <a class="el" href="j2k_8h.html#a60371d3609364bf033e8c244599abf6f">opj_j2k_get_tile()</a>, <a class="el" href="j2k_8h.html#a34c49b256edcdbf036492dfa635284d7">opj_j2k_read_header()</a>, and <a class="el" href="j2k_8h.html#accea6429e4f466250b095ee3fb94805c">opj_j2k_start_compress()</a>.</p>
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