jens
05da8712f6
git-svn-id: http://moon:8086/svn/software/trunk/libsrc/_to_be_added@1 b431acfa-c32f-4a4a-93f1-934dc6c82436
65 lines
1.9 KiB
C
Executable File
65 lines
1.9 KiB
C
Executable File
// ------------------------------------------------------------
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// clob.h
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//
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// A color quantizer using binary-split technique
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// From:
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// "Color Quantization of Images", Orchard, Bouman
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// IEEE Trans. on Sig. Proc., vol. 39, no. 12, pp. 2677-2690, Dec. 1991.
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//
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// 10.03.2005, J.Ahrensfeld
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// ------------------------------------------------------------
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#ifndef CLOB_H
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#define CLOB_H
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#include "bintree.h"
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#include "colortypes.h"
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// ------------------------------------------------------------
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#define ROW_DIM 3
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// ------------------------------------------------------------
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typedef struct _node_data_t
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{
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int N, *pC, len_C;
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color_vector_t R[ROW_DIM];
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color_vector_t cov[ROW_DIM];
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color_vector_t m;
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color_vector_t q;
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color_vector_t e;
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double lambda;
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double *pExpr_left, expr_right;
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} node_data_t;
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typedef struct _colorquant_t
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{
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int nRow, nCol, N_max, M_max, nPixel;
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double *pTemp;
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color_vector_t *pX, *pXs;
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node_data_t *pRootData, *pData;
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} colorquant_t;
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typedef struct _codebook_t
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{
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int num_colors, max_colors, max_samples;
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color_vector_t *pColor;
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int **ppC, *pC, *size_C;
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} codebook_t;
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// ------------------------------------------------------------
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void ColorQuant_Init(colorquant_t *pCQ, int N_max, int M_max);
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void ColorQuant_Free(colorquant_t *pCQ);
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void FreeNodeData(node_data_t *pObj);
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void ColorNodeStat(colorquant_t *pCQ, node_data_t *pObj, color_vector_t *pXs);
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double ColorLambda(colorquant_t *pCQ, node_data_t *pObj, color_vector_t *pXs);
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void ColorNodeSplit(colorquant_t *pCQ, node_data_t *pObj, node_data_t *pData2n, node_data_t *pData2n1);
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int ColorQuant(colorquant_t *pCQ, codebook_t *pCB, color_vector_t *pX, int K, int N, int M, double lambda_min);
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void CodebookAlloc(codebook_t *pObj, int N_max, int M_max);
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void CodebookFree(codebook_t *pObj);
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// ------------------------------------------------------------
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#endif // CLOB_H
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