📄 write_image.cpp
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/* $Id: write_image.c,v 1.6 1998/05/14 21:40:28 hjlee Exp $ */
/****************************************************************************/
/* MPEG4 Visual Texture Coding (VTC) Mode Software */
/* */
/* This software was jointly developed by the following participants: */
/* */
/* Single-quant, multi-quant and flow control */
/* are provided by Sarnoff Corporation */
/* Iraj Sodagar (iraj@sarnoff.com) */
/* Hung-Ju Lee (hjlee@sarnoff.com) */
/* Paul Hatrack (hatrack@sarnoff.com) */
/* Shipeng Li (shipeng@sarnoff.com) */
/* Bing-Bing Chai (bchai@sarnoff.com) */
/* B.S. Srinivas (bsrinivas@sarnoff.com) */
/* */
/* Bi-level is provided by Texas Instruments */
/* Jie Liang (liang@ti.com) */
/* */
/* Shape Coding is provided by OKI Electric Industry Co., Ltd. */
/* Zhixiong Wu (sgo@hlabs.oki.co.jp) */
/* Yoshihiro Ueda (yueda@hlabs.oki.co.jp) */
/* Toshifumi Kanamaru (kanamaru@hlabs.oki.co.jp) */
/* */
/* OKI, Sharp, Sarnoff, TI and Microsoft contributed to bitstream */
/* exchange and bug fixing. */
/* */
/* */
/* In the course of development of the MPEG-4 standard, this software */
/* module is an implementation of a part of one or more MPEG-4 tools as */
/* specified by the MPEG-4 standard. */
/* */
/* The copyright of this software belongs to ISO/IEC. ISO/IEC gives use */
/* of the MPEG-4 standard free license to use this software module or */
/* modifications thereof for hardware or software products claiming */
/* conformance to the MPEG-4 standard. */
/* */
/* Those intending to use this software module in hardware or software */
/* products are advised that use may infringe existing patents. The */
/* original developers of this software module and their companies, the */
/* subsequent editors and their companies, and ISO/IEC have no liability */
/* and ISO/IEC have no liability for use of this software module or */
/* modification thereof in an implementation. */
/* */
/* Permission is granted to MPEG members to use, copy, modify, */
/* and distribute the software modules ( or portions thereof ) */
/* for standardization activity within ISO/IEC JTC1/SC29/WG11. */
/* */
/* Copyright 1995, 1996, 1997, 1998 ISO/IEC */
/****************************************************************************/
/************************************************************/
/* Sarnoff Very Low Bit Rate Still Image Coder */
/* Copyright 1995, 1996, 1997, 1998 Sarnoff Corporation */
/************************************************************/
/****************************************************************************/
/* Texas Instruments Predictive Embedded Zerotree (PEZW) Image Codec */
/* Copyright 1996, 1997, 1998 Texas Instruments */
/****************************************************************************/
#include <stdio.h>
#include <math.h>
#include "dataStruct.hpp"
#include "globals.hpp"
#include "dwt.h"
extern Int STO_const_alpha;
extern UChar STO_const_alpha_value;
Void CVTCDecoder::write_image(Char *recImgFile, Int colors,
Int width, Int height,
Int real_width, Int real_height,
Int rorigin_x, Int rorigin_y,
UChar *outimage[3], UChar *outmask[3],
Int usemask, Int fullsize, Int MinLevel)
/* write outimage */
{
FILE *outfptr, *maskfptr;
Char recSegFile[200];
UChar *ptr;
UChar *recmask[3];
UChar *recimage[3];
Int status,i,col,ret;
Int w,h;
Int rwidth[3],rheight[3];
Int Width[3], Height[3];
Int origin_x[3],origin_y[3];
Int l, lt;
Int j,k,n, count, sum[3]; // hjlee 0901
Width[0] = width;
Width[1] = Width[2] = (Width[0]+1)>>1;
Height[0] = height;
Height[1] = Height[2] = (Height[0]+1)>>1;
origin_x[0] = rorigin_x;
origin_x[1] = origin_x[2] = origin_x[0]>>1;
origin_y[0] = rorigin_y;
origin_y[1] = origin_y[2] = origin_y[0]>>1;
outfptr = fopen(recImgFile,"wb");
if(usemask) {
sprintf(recSegFile, "%s.seg",recImgFile);
maskfptr = fopen(recSegFile,"wb");
}
noteProgress("Writing the reconstruction image: '%s'",recImgFile);
l = (fullsize ? 0 : MinLevel);
lt = (1<<l) -1;
// hjlee 0901
/* adjust the image for pixel w/ mismatched luma and chroma */
if(colors >1) {
for(i=0;i<Height[0]>>l;i++) {
for(j=0; j<Width[0]>>l; j++) {
if(outmask[0][i*(Width[0]>>l)+j]==DWT_IN &&
outmask[1][(i>>1)*(Width[1]>>l)+(j>>1)]!=DWT_IN) {
count=0;
for(col=1;col<colors;col++)
sum[col] = 0;
for(k=0;k<2;k++) {
for(n=0;n<2;n++) {
if(outmask[1][((i>>1)+k)*(Width[1]>>l)+((j>>1)+n)]==DWT_IN) {
count++;
for(col=1;col<colors; col++)
sum[col]+=outimage[col][((i>>1)+k)*(Width[1]>>l)+((j>>1)+n)];
}
}
}
if(count==0) errorHandler("Impossible case occured, check program\n") ; /* impossible! no chroma available for this pixel ignore it */
else {
for(col=1; col< colors; col++) {
outmask[col][(i>>1)*(Width[col]>>l)+(j>>1)] = DWT_IN;
outimage[col][(i>>1)*(Width[col]>>l)+(j>>1)] = sum[col]/count;
}
}
}
}
}
}
for (col=0; col<colors; col++) {
if(col==0) { /* chroma */
rwidth[0] = (real_width+lt)>>l;
rheight[0] = (real_height+lt)>>l;
}
else {
rwidth[col] = (rwidth[0] +1) >> 1;
rheight[col] = (rheight[0] +1) >>1;
}
recmask[col] = (UChar *)malloc(sizeof(UChar)*
rwidth[col]*rheight[col]);
recimage[col] = (UChar *)malloc(sizeof(UChar)*
rwidth[col]*rheight[col]);
ret=PutBox(outimage[col], outmask[col], recimage[col], recmask[col],
rwidth[col], rheight[col],
(Width[col]>>l), (Height[col]>>l),
origin_x[col]>>l, origin_y[col]>>l, 0,
(usemask)?(STO_const_alpha?STO_const_alpha_value:MASK_VAL):RECTANGULAR);
if(ret!= DWT_OK)
errorHandler("DWT Error code %d", ret);
ptr = recimage[col];
w = rwidth[col];
h = rheight[col];
for (i=0; i<h; i++) {
if ((status = fwrite((UChar *)ptr, sizeof(Char),
w, outfptr)) != w)
errorHandler("Error in writing image file.");
ptr += w;
}
if(usemask && col==0) {
ptr = recmask[col];
for (i=0; i<h; i++) {
if ((status = fwrite((UChar *)ptr, sizeof(Char),
w, maskfptr)) != w)
errorHandler("Error in writing image file.");
ptr += w;
}
}
free(recmask[col]);
free(recimage[col]);
} /* col */
fclose(outfptr);
if(usemask) fclose(maskfptr);
}
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