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<div class="section" id="step-6-blotting-the-median-image">
<span id="blot"></span><h1>Step 6: Blotting the Median Image<a class="headerlink" href="#step-6-blotting-the-median-image" title="Permalink to this headline">¶</a></h1>
<p>The median image now gets blotted back to create median-cleaned images which can be compared directly with each input image to identify cosmic-rays.</p>
<span class="target" id="module-drizzlepac.ablot"></span><dl class="function">
<dt id="drizzlepac.ablot.blot">
<tt class="descclassname">drizzlepac.ablot.</tt><tt class="descname">blot</tt><big>(</big><em>data</em>, <em>outdata</em>, <em>configObj=None</em>, <em>wcsmap=<class drizzlepac.wcs_functions.WCSMap at 0xf4fda26c></em>, <em>editpars=False</em>, <em>**input_dict</em><big>)</big><a class="headerlink" href="#drizzlepac.ablot.blot" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="function">
<dt id="drizzlepac.ablot.buildBlotParamDict">
<tt class="descclassname">drizzlepac.ablot.</tt><tt class="descname">buildBlotParamDict</tt><big>(</big><em>configObj</em><big>)</big><a class="headerlink" href="#drizzlepac.ablot.buildBlotParamDict" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="function">
<dt id="drizzlepac.ablot.do_blot">
<tt class="descclassname">drizzlepac.ablot.</tt><tt class="descname">do_blot</tt><big>(</big><em>source</em>, <em>source_wcs</em>, <em>blot_wcs</em>, <em>exptime</em>, <em>coeffs=True</em>, <em>interp='poly5'</em>, <em>sinscl=1.0</em>, <em>stepsize=10</em>, <em>wcsmap=None</em><big>)</big><a class="headerlink" href="#drizzlepac.ablot.do_blot" title="Permalink to this definition">¶</a></dt>
<dd><p>Core functionality of performing the ‘blot’ operation to create a single
blotted image from a single source image.
All distortion information is assumed to be included in the WCS specification
of the ‘output’ blotted image given in ‘blot_wcs’.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name" colspan="2">Parameters:</th></tr>
<tr class="field-odd field"><td> </td><td class="field-body"><p class="first"><strong id="source">source</strong></p>
<blockquote>
<div><p>Input numpy array of undistorted source image in units of ‘cps’.</p>
</div></blockquote>
<p><strong id="source_wcs">source_wcs</strong></p>
<blockquote>
<div><p>HSTWCS object representing source image WCS.</p>
</div></blockquote>
<p><strong id="blot_wcs">blot_wcs</strong></p>
<blockquote>
<div><p>HSTWCS object representing the blotted image WCS.</p>
</div></blockquote>
<p class="last"><strong id="exptime">exptime</strong></p>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="drizzlepac.ablot.getHelpAsString">
<tt class="descclassname">drizzlepac.ablot.</tt><tt class="descname">getHelpAsString</tt><big>(</big><big>)</big><a class="headerlink" href="#drizzlepac.ablot.getHelpAsString" title="Permalink to this definition">¶</a></dt>
<dd><p>Return useful help from a file in the script directory called module.help</p>
</dd></dl>
<dl class="function">
<dt id="drizzlepac.ablot.help">
<tt class="descclassname">drizzlepac.ablot.</tt><tt class="descname">help</tt><big>(</big><big>)</big><a class="headerlink" href="#drizzlepac.ablot.help" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="function">
<dt id="drizzlepac.ablot.run">
<tt class="descclassname">drizzlepac.ablot.</tt><tt class="descname">run</tt><big>(</big><em>configObj</em>, <em>wcsmap=None</em><big>)</big><a class="headerlink" href="#drizzlepac.ablot.run" title="Permalink to this definition">¶</a></dt>
<dd><p>Run the blot task based on parameters provided interactively by the user.</p>
</dd></dl>
<dl class="function">
<dt id="drizzlepac.ablot.runBlot">
<tt class="descclassname">drizzlepac.ablot.</tt><tt class="descname">runBlot</tt><big>(</big><em>imageObjectList</em>, <em>output_wcs</em>, <em>configObj={}</em>, <em>wcsmap=<class drizzlepac.wcs_functions.WCSMap at 0xf4fda26c></em>, <em>procSteps=None</em><big>)</big><a class="headerlink" href="#drizzlepac.ablot.runBlot" title="Permalink to this definition">¶</a></dt>
<dd></dd></dl>
<dl class="function">
<dt id="drizzlepac.ablot.run_blot">
<tt class="descclassname">drizzlepac.ablot.</tt><tt class="descname">run_blot</tt><big>(</big><em>imageObjectList</em>, <em>output_wcs</em>, <em>paramDict</em>, <em>wcsmap=<class drizzlepac.wcs_functions.WCSMap at 0xf4fda26c></em><big>)</big><a class="headerlink" href="#drizzlepac.ablot.run_blot" title="Permalink to this definition">¶</a></dt>
<dd><p>Perform the blot operation on the list of images.</p>
</dd></dl>
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