134 lines
5.4 KiB
C++
134 lines
5.4 KiB
C++
// ____ ______ __
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// / __ \ / ____// /
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// / /_/ // / / /
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// / ____// /___ / /___ PixInsight Class Library
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// /_/ \____//_____/ PCL 2.4.23
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// ----------------------------------------------------------------------------
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// pcl/ColorSpace.h - Released 2022-03-12T18:59:29Z
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// ----------------------------------------------------------------------------
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// This file is part of the PixInsight Class Library (PCL).
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// PCL is a multiplatform C++ framework for development of PixInsight modules.
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//
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// Copyright (c) 2003-2022 Pleiades Astrophoto S.L. All Rights Reserved.
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//
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// Redistribution and use in both source and binary forms, with or without
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// modification, is permitted provided that the following conditions are met:
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//
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// 1. All redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// 2. All redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// 3. Neither the names "PixInsight" and "Pleiades Astrophoto", nor the names
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// of their contributors, may be used to endorse or promote products derived
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// from this software without specific prior written permission. For written
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// permission, please contact info@pixinsight.com.
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//
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// 4. All products derived from this software, in any form whatsoever, must
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// reproduce the following acknowledgment in the end-user documentation
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// and/or other materials provided with the product:
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//
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// "This product is based on software from the PixInsight project, developed
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// by Pleiades Astrophoto and its contributors (https://pixinsight.com/)."
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//
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// Alternatively, if that is where third-party acknowledgments normally
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// appear, this acknowledgment must be reproduced in the product itself.
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//
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// THIS SOFTWARE IS PROVIDED BY PLEIADES ASTROPHOTO AND ITS CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL PLEIADES ASTROPHOTO OR ITS
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, BUSINESS
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// INTERRUPTION; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; AND LOSS OF USE,
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// DATA OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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// ----------------------------------------------------------------------------
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#ifndef __PCL_ColorSpace_h
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#define __PCL_ColorSpace_h
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/// \file pcl/ColorSpace.h
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#include <pcl/Defs.h>
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#include <pcl/String.h>
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namespace pcl
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{
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// ----------------------------------------------------------------------------
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/*!
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* \namespace pcl::ColorSpace
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* \brief Supported color spaces
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*
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* Current versions of the PixInsight platform support the following color
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* spaces for images:
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*
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* <table border="1" cellpadding="4" cellspacing="0">
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* <tr><td>ColorSpace::Unknown</td> <td>Corresponds to an unknown or unsupported color space</td></tr>
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* <tr><td>ColorSpace::Gray</td> <td>Grayscale monochrome space</td></tr>
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* <tr><td>ColorSpace::RGB</td> <td>RGB color space</td></tr>
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* <tr><td>ColorSpace::CIEXYZ</td> <td>CIE XYZ color space</td></tr>
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* <tr><td>ColorSpace::CIELab</td> <td>CIE L*a*b* color space</td></tr>
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* <tr><td>ColorSpace::CIELch</td> <td>CIE L*c*h* color space</td></tr>
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* <tr><td>ColorSpace::HSV</td> <td>HSV color space: Hue, Saturation, Value</td></tr>
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* <tr><td>ColorSpace::HSI</td> <td>HSI color space: Hue, Saturation, Intensity</td></tr>
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* </table>
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*/
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namespace ColorSpace
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{
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enum value_type
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{
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Unknown = -1, // Corresponds to an unknown or unsupported color space
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Gray = 0, // Grayscale monochrome space
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RGB, // RGB color space
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CIEXYZ, // CIE XYZ color space
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CIELab, // CIE L*a*b* color space
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CIELch, // CIE L*c*h* color space
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HSV, // HSV color space: Hue, Saturation, Value
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HSI, // HSI color space: Hue, Saturation, Intensity
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NumberOfColorSpaces
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};
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/*!
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* Returns the number of nominal channels in the specified color space.
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*/
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inline int NumberOfNominalChannels( int colorSpace )
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{
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return (colorSpace == Gray) ? 1 : 3;
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}
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/*!
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* Returns a string representing the name of a color space.
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*
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* \param colorSpace A supported color space, identified by its
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* corresponding symbolic constant.
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*/
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String Name( int colorSpace );
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/*!
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* Returns the identifier of a nominal channel in a specified color space.
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*
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* \param colorSpace A supported color space, identified by its
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* corresponding symbolic constant.
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*
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* \param channel The index >= 0 of a nominal channel or component.
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*/
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String ChannelId( int colorSpace, int channel );
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}
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// ----------------------------------------------------------------------------
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} // pcl
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#endif // __PCL_ColorSpace_h
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// ----------------------------------------------------------------------------
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// EOF pcl/ColorSpace.h - Released 2022-03-12T18:59:29Z
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