<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>AlbumShaper: sharpen.cpp File Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.6.2 --> <div class="navigation" id="top"> <div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div> <div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul> </div> </div> <div class="contents"> <h1>sharpen.cpp File Reference</h1><code>#include <qimage.h></code><br/> <code>#include <qstring.h></code><br/> <code>#include "<a class="el" href="sharpen_8h_source.html">sharpen.h</a>"</code><br/> <code>#include "<a class="el" href="blur_8h_source.html">blur.h</a>"</code><br/> <code>#include "../tools/imageTools.h"</code><br/> <div class="dynheader"> Include dependency graph for sharpen.cpp:</div> <div class="dynsection"> </div> <p><a href="sharpen_8cpp_source.html">Go to the source code of this file.</a></p> <table border="0" cellpadding="0" cellspacing="0"> <tr><td colspan="2"><h2>Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="sharpen_8cpp.html#a92c3a61ec589ffe5d0aa1811add7a22e">sharpenImage</a> (QImage &image, float sigma, QPoint offset, QSize fullImageRes, QImage *<a class="el" href="blur_8cpp.html#a8bb23dbf5a4b8bb7e3e90e0567712bdd">edgeImage</a>, bool blurEdges)</td></tr> </table> <hr/><h2>Function Documentation</h2> <a class="anchor" id="a92c3a61ec589ffe5d0aa1811add7a22e"></a><!-- doxytag: member="sharpen.cpp::sharpenImage" ref="a92c3a61ec589ffe5d0aa1811add7a22e" args="(QImage &image, float sigma, QPoint offset, QSize fullImageRes, QImage *edgeImage, bool blurEdges)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void sharpenImage </td> <td>(</td> <td class="paramtype">QImage & </td> <td class="paramname"> <em>image</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">float </td> <td class="paramname"> <em>sigma</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">QPoint </td> <td class="paramname"> <em>offset</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">QSize </td> <td class="paramname"> <em>fullImageRes</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">QImage * </td> <td class="paramname"> <em>edgeImage</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">bool </td> <td class="paramname"> <em>blurEdges</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>Definition at line <a class="el" href="sharpen_8cpp_source.html#l00092">92</a> of file <a class="el" href="sharpen_8cpp_source.html">sharpen.cpp</a>.</p> <p>References <a class="el" href="blur_8cpp_source.html#l00078">b1</a>, <a class="el" href="blur_8cpp_source.html#l00078">b2</a>, <a class="el" href="blur_8cpp_source.html#l00094">blurImage()</a>, <a class="el" href="imageTools_8cpp_source.html#l00264">HSVtoRGB()</a>, and <a class="el" href="imageTools_8cpp_source.html#l00231">RGBtoHSV()</a>.</p> <p>Referenced by <a class="el" href="grainEditor_8cpp_source.html#l00262">GrainEditor::adjustImage()</a>.</p> <p><div class="fragment"><pre class="fragment"><a name="l00095"></a>00095 { <a name="l00096"></a>00096 <span class="comment">//construct blur copy</span> <a name="l00097"></a>00097 QImage blurredImage = image.copy(); <a name="l00098"></a>00098 <a class="code" href="blur_8cpp.html#ae7be57816a66918a26e567655f4b8e1c">blurImage</a>( blurredImage, sigma ); <a name="l00099"></a>00099 <a name="l00100"></a>00100 <span class="comment">//iterate over each pixel and adjust luminance value</span> <a name="l00101"></a>00101 <span class="keywordtype">int</span> x, y; <a name="l00102"></a>00102 QRgb *origRgb, *blurredRgb, *edgeRgb; <a name="l00103"></a>00103 uchar *origScanline; <a name="l00104"></a>00104 uchar *blurredScanline; <a name="l00105"></a>00105 uchar *edgesScanline = NULL; <a name="l00106"></a>00106 <a name="l00107"></a>00107 <span class="keywordflow">for</span>(y=0; y<image.height(); y++) <a name="l00108"></a>00108 { <a name="l00109"></a>00109 origScanline = image.scanLine(y); <a name="l00110"></a>00110 blurredScanline = blurredImage.scanLine(y); <a name="l00111"></a>00111 <span class="keywordflow">if</span>( <a class="code" href="blur_8cpp.html#a8bb23dbf5a4b8bb7e3e90e0567712bdd">edgeImage</a> != NULL ) <a name="l00112"></a>00112 { <a name="l00113"></a>00113 <span class="keywordtype">int</span> edgeY = ((<a class="code" href="blur_8cpp.html#a8bb23dbf5a4b8bb7e3e90e0567712bdd">edgeImage</a>->height()-1) * (y+offset.y())) / (fullImageRes.height()-1); <a name="l00114"></a>00114 edgesScanline = <a class="code" href="blur_8cpp.html#a8bb23dbf5a4b8bb7e3e90e0567712bdd">edgeImage</a>->scanLine(edgeY); <a name="l00115"></a>00115 } <a name="l00116"></a>00116 <a name="l00117"></a>00117 <span class="keywordflow">for</span>(x=0; x<image.width(); x++) <a name="l00118"></a>00118 { <a name="l00119"></a>00119 <span class="comment">//get rgb triplets</span> <a name="l00120"></a>00120 origRgb = ((QRgb*)origScanline+x); <a name="l00121"></a>00121 <span class="keywordtype">double</span> r1 = ((double)qRed(*origRgb) )/255.0; <a name="l00122"></a>00122 <span class="keywordtype">double</span> g1 = ((double)qGreen(*origRgb) )/255.0; <a name="l00123"></a>00123 <span class="keywordtype">double</span> <a class="code" href="blur_8cpp.html#a0a909289ec9fbfaa70c0e112ec9e3b15">b1</a> = ((double)qBlue(*origRgb) )/255.0; <a name="l00124"></a>00124 <a name="l00125"></a>00125 blurredRgb = ((QRgb*)blurredScanline+x); <a name="l00126"></a>00126 <span class="keywordtype">double</span> r2 = ((double)qRed(*blurredRgb) )/255.0; <a name="l00127"></a>00127 <span class="keywordtype">double</span> g2 = ((double)qGreen(*blurredRgb) )/255.0; <a name="l00128"></a>00128 <span class="keywordtype">double</span> <a class="code" href="blur_8cpp.html#a746bcb222044619e5a9b335d242a2a92">b2</a> = ((double)qBlue(*blurredRgb) )/255.0; <a name="l00129"></a>00129 <a name="l00130"></a>00130 <span class="comment">//sharpen the entire thing!</span> <a name="l00131"></a>00131 <span class="keywordtype">float</span> alpha; <a name="l00132"></a>00132 <span class="keywordflow">if</span>( <a class="code" href="blur_8cpp.html#a8bb23dbf5a4b8bb7e3e90e0567712bdd">edgeImage</a> == NULL) <a name="l00133"></a>00133 alpha = 1.0f; <a name="l00134"></a>00134 <span class="keywordflow">else</span> <a name="l00135"></a>00135 { <a name="l00136"></a>00136 <span class="keywordtype">int</span> edgeX = ((<a class="code" href="blur_8cpp.html#a8bb23dbf5a4b8bb7e3e90e0567712bdd">edgeImage</a>->width()-1) * (x+offset.x())) / (fullImageRes.width()-1); <a name="l00137"></a>00137 edgeRgb = ((QRgb*)edgesScanline+edgeX); <a name="l00138"></a>00138 <a name="l00139"></a>00139 alpha = ((float) qRed( *edgeRgb )) / 255.0f; <a name="l00140"></a>00140 <a name="l00141"></a>00141 <span class="comment">//blur regions, not edges</span> <a name="l00142"></a>00142 <span class="keywordflow">if</span>(!blurEdges) <a name="l00143"></a>00143 alpha = 1.0f - alpha; <a name="l00144"></a>00144 } <a name="l00145"></a>00145 <a name="l00146"></a>00146 <span class="comment">//convert to hsv</span> <a name="l00147"></a>00147 <span class="keywordtype">double</span> h1,s1,v1; <a name="l00148"></a>00148 <a class="code" href="imageTools_8cpp.html#a7769c25727d6caedf20321d238b3828d" title="Convert a RGB color triplet to HSV.">RGBtoHSV</a>(r1,g1,b1,&h1,&s1,&v1); <a name="l00149"></a>00149 <a name="l00150"></a>00150 <span class="keywordtype">double</span> h2,s2,v2; <a name="l00151"></a>00151 <a class="code" href="imageTools_8cpp.html#a7769c25727d6caedf20321d238b3828d" title="Convert a RGB color triplet to HSV.">RGBtoHSV</a>(r2,g2,b2,&h2,&s2,&v2); <a name="l00152"></a>00152 <a name="l00153"></a>00153 <span class="comment">//reset v</span> <a name="l00154"></a>00154 v1 = (alpha * QMIN( QMAX(2*v1 - v2, 0), 1.0 )) + (1-alpha)*v1; <a name="l00155"></a>00155 <a name="l00156"></a>00156 <span class="comment">//convert adjusted color back to rgb colorspace and clamp</span> <a name="l00157"></a>00157 <a class="code" href="imageTools_8cpp.html#aa4ea508b635b1a7648bb5834132d4681" title="Convert a HSV color triplet to RGB.">HSVtoRGB</a>( &r1,&g1,&b1, h1,s1,v1); <a name="l00158"></a>00158 <span class="keywordtype">int</span> rp = (int) QMIN( QMAX((r1*255), 0), 255 ); <a name="l00159"></a>00159 <span class="keywordtype">int</span> gp = (int) QMIN( QMAX((g1*255), 0), 255 ); <a name="l00160"></a>00160 <span class="keywordtype">int</span> bp = (int) QMIN( QMAX((b1*255), 0), 255 ); <a name="l00161"></a>00161 <a name="l00162"></a>00162 <span class="comment">//set adjusted color value</span> <a name="l00163"></a>00163 *origRgb = qRgb(rp,gp,bp); <a name="l00164"></a>00164 } <span class="comment">//x</span> <a name="l00165"></a>00165 } <span class="comment">//y</span> <a name="l00166"></a>00166 <a name="l00167"></a>00167 } </pre></div></p> </div> </div> </div> <hr size="1"/><address style="text-align: right;"><small>Generated by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address> </body> </html>