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63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#ifndef CRYINCLUDE_EDITOR_UTIL_IMAGEHISTOGRAM_H
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#define CRYINCLUDE_EDITOR_UTIL_IMAGEHISTOGRAM_H
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#pragma once
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#include "Include/EditorCoreAPI.h"
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class EDITOR_CORE_API CImageHistogram
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{
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public:
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static const int kNumChannels = 4;
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static const int kNumColorLevels = 256;
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enum EImageFormat
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{
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eImageFormat_8BPP,
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eImageFormat_24BPP_RGB,
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eImageFormat_24BPP_BGR,
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eImageFormat_32BPP_RGBA,
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eImageFormat_32BPP_BGRA,
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eImageFormat_32BPP_ARGB,
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eImageFormat_32BPP_ABGR
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};
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CImageHistogram();
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virtual ~CImageHistogram();
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// Description:
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// Compute the histogram of an image
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// Arguments:
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// pImageData - the image data
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// aWidth - the width of the image in pixels
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// aHeight - the height of the image in pixels
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// aBitsPerPixel - the number of bits per pixel, currently supported: 8 (monochrome), 24 (RGB) and 32 (RGBA)
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void ComputeHistogram(BYTE* pImageData, unsigned int aWidth, unsigned int aHeight, EImageFormat aFormat = eImageFormat_32BPP_RGBA);
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void ClearHistogram();
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void CopyComputedDataFrom(CImageHistogram* histogram);
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protected:
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void ComputeStatisticsForChannel(int aIndex);
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public:
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unsigned int m_count[kNumChannels][kNumColorLevels];
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unsigned int m_lumCount[kNumColorLevels];
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unsigned int m_maxCount[kNumChannels];
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unsigned int m_maxLumCount;
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float m_mean[kNumChannels], m_stdDev[kNumChannels], m_median[kNumChannels];
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float m_meanAvg, m_stdDevAvg, m_medianAvg;
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EImageFormat m_imageFormat;
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};
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#endif // CRYINCLUDE_EDITOR_UTIL_IMAGEHISTOGRAM_H
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