aa.rar_aa特殊头像_图像 渐变

/*第4题 特殊图像效果--源代码及关键源代码注解如下：*/ #include"stdio.h" #include"alloc.h" #include"dos.h" #include"graphics.h" #include"math.h" typedef struct { int bfType; /* 类型标志，总是BM */ long bfSize; /* 文件大小 */ int bfReserved1; int bfReserved2; long bfOffBits; /* 位图点阵偏移量*/ }HEAD; typedef struct { long biSize; /* 结构体字节总数 */ long biWidth; /* 图像宽度 */ long biHeight; /*图像高度 */ int biPlanes; /* 必须为1 */ int biBitCount; /* 每个像素所占二进制位数，可能是1,4,8或 24 */ long biCompress; /*压缩方式*/ long biSizeImage; /*像素点阵大小 */ long biXPelsPerMeter; /* 水平像素数*/ long biYPelsPerMeter; /* 垂直像素数 */ long biClrUsed; /*使用的颜色数 */ long biClrImportant; /*重要颜色数 */ }INFO; typedef struct { unsigned char rgbBlue; /*蓝色所占比重*/ unsigned char rgbGreen; /*绿色所占比重*/ unsigned char rgbRed; /*红色所占比重*/ unsigned char rgbReserved; /*保留字节 */ }RGBQUAD; int Match_f(int nRed,int nGreen,int nBlue); /*寻找与像素匹配的调色板的序号*/ Sharp_f(FILE *fpi, FILE *fpo); /* 锐化处理*/ Emboss_f(FILE *fpi, FILE *fpo); /*浮雕效果处理*/ Smooth_f(FILE *fpi,FILE *fpo); /*柔化效果处理*/ Initial_f(int nChoice); /*初始化图像文件*/ RGBQUAD straPla[256]; /*256色调色板*/ HEAD strHead; INFO strInfo; unsigned int nWidth=512,nDepth=512; /*处理512×512位图*/ unsigned char naImage[64][512]; int Match_f(int nRed,int nGreen,int nBlue) /*寻找与像素匹配的调色板的序号*/ { long int nMax,nLength; int nNum=0,nCounti; unsigned int nImageRed,nImageGreen, nImageBlue; nImageRed=(unsigned int)(straPla[0].rgbRed); nImageGreen=(unsigned int)(straPla[0].rgbGreen); nImageBlue=(unsigned int)(straPla[0].rgbBlue); nMax=(nRed-nImageRed)*(nRed-nImageRed)+(nGreen-nImageGreen)*(nGreen-nImageGreen)+(nBlue-nImageBlue)*(nBlue-nImageBlue); for(nCounti=1;nCounti<256;nCounti++) { nImageRed=(unsigned int)(straPla[nCounti].rgbRed); nImageGreen=(unsigned int)(straPla[nCounti].rgbGreen); nImageBlue=(unsigned int)(straPla[nCounti].rgbBlue); nLength=(nRed-nImageRed)*(nRed-nImageRed)+(nGreen-nImageGreen)*(nGreen-nImageGreen)+(nBlue-nImageBlue)*(nBlue-nImageBlue); if(nMax>nLength) { nMax=nLength; nNum=nCounti; if(nMax==0) break; } } return nNum; } Sharp_f(FILE *fpi, FILE *fpo) /* 锐化处理*/ { int nCounti,nCountj,nCountk,nCountl; int nRed,nBlue,nGreen; int nDx=1,nDy=1; unsigned int nPixel1,nPixel2,nPixel; fread((char *)&strHead,1,sizeof(strHead),fpi); fread((char *)&strInfo,1,sizeof(strInfo),fpi); for(nCounti=0;nCounti<256;nCounti++) fread((char *)&straPla[nCounti],1,sizeof(RGBQUAD),fpi); fwrite((char *)&strHead,1,sizeof(strHead),fpo); fwrite((char*)&strInfo,1,sizeof(strInfo),fpo); for(nCounti=0;nCounti<256;nCounti++) fwrite((char *)&straPla[nCounti],1,sizeof(RGBQUAD),fpo); for(nCounti=0;nCounti<8;nCounti++) { for(nCountj=0;nCountj<64;nCountj++) fread(&naImage[nCountj][0],1,nWidth,fpi); for(nCountk=1;nCountk<64-2;nCountk++) for(nCountl=1;nCountl<nWidth-2;nCountl++) { nPixel1=(unsigned char)(naImage[nCountk][nCountl]); nPixel2=(unsigned char)(naImage[nCountk-nDx][nCountl-nDy]); nRed=straPla[nPixel1].rgbRed+0.5*(straPla[nPixel1].rgbRed-straPla[nPixel2].rgbRed); /*0.5为锐化系数*/ nGreen=straPla[nPixel1].rgbGreen+0.5*(straPla[nPixel1].rgbGreen-straPla[nPixel2].rgbGreen); nBlue=straPla[nPixel1].rgbBlue+0.5*(straPla[nPixel1].rgbBlue-straPla[nPixel2].rgbBlue); if(nRed>255) nRed=255; if(nRed<0) nRed=0; if(nGreen>255) nGreen=255; if(nGreen<0) nGreen=0; if(nBlue>255) nBlue=255; if(nBlue<0) nBlue=0; nPixel=Match_f(nRed,nGreen,nBlue); naImage[nCountk][nCountl]=nPixel; } for(nCountj=0;nCountj<64;nCountj++) fwrite(&naImage[nCountj][0],1,nWidth,fpo); } } Emboss_f(FILE *fpi, FILE *fpo) /*浮雕效果处理*/ { int nCounti,nCountj,nCountk,nCountl; int nRed,nBlue,nGreen; int nDx=1,nDy=1; unsigned int nPixel1,nPixel2,nPixel; fread((char *)&strHead,1,sizeof(strHead),fpi); fread((char *)&strInfo,1,sizeof(strInfo),fpi); for(nCounti=0;nCounti<256;nCounti++) fread((char *)&straPla[nCounti],1,sizeof(RGBQUAD),fpi); fwrite((char *)&strHead,1,sizeof(strHead),fpo); fwrite((char*)&strInfo,1,sizeof(strInfo),fpo); for(nCounti=0;nCounti<256;nCounti++) fwrite((char *)&straPla[nCounti],1,sizeof(RGBQUAD),fpo); for(nCounti=0;nCounti<8;nCounti++) { for(nCountj=0;nCountj<64;nCountj++) fread(&naImage[nCountj][0],1,nWidth,fpi); for(nCountk=0;nCountk<64-1;nCountk++) { for(nCountl=0;nCountl<nWidth-1;nCountl++) { nPixel1=(unsigned char)(naImage[nCountk][nCountl]); nPixel2=(unsigned char)(naImage[nCountk+nDx][nCountl+nDy]); nRed=fabs(straPla[nPixel1].rgbRed-straPla[nPixel2].rgbRed+128); nGreen=fabs(straPla[nPixel1].rgbGreen-straPla[nPixel2].rgbGreen+128); nBlue=fabs(straPla[nPixel1].rgbBlue-straPla[nPixel2].rgbBlue+128); nPixel=Match_f(nRed,nGreen,nBlue); naImage[nCountk][nCountl]=nPixel; } } for(nCountl=0;nCountl<nWidth-1;nCountl++) { nPixel1=(unsigned char)(naImage[63][nCountl]); nPixel2=(unsigned char)(naImage[63][nCountl+nDy]); nRed=fabs(straPla[nPixel1].rgbRed-straPla[nPixel2].rgbRed+128); nGreen=fabs(straPla[nPixel1].rgbGreen-straPla[nPixel2].rgbGreen+128); nBlue=fabs(straPla[nPixel1].rgbBlue-straPla[nPixel2].rgbBlue+128); nPixel=Match_f(nRed,nGreen,nBlue); naImage[63][nCountl]=nPixel; } for(nCountj=0;nCountj<64;nCountj++) fwrite(&naImage[nCountj][0],1,nWidth,fpo); } } Smooth_f(FILE *fpi,FILE *fpo) /*柔化效果处理*/ { int nCounti,nCountj,nCountk,nCountl,nCountm,nCountn,nRed,nGreen,nBlue; unsigned nPixel; fread((char *)&strHead,1,sizeof(strHead),fpi); fread((char *)&strInfo,1,sizeof(strInfo),fpi); for(nCounti=0;nCounti<256;nCounti++) fread((char *)&straPla[nCounti],1,sizeof(RGBQUAD),fpi); fwrite((char *)&strHead,1,sizeof(strHead),fpo); fwrite((char*)&strInfo,1,sizeof(strInfo),fpo); for(nCounti=0;nCounti<256;nCounti++) fwrite((char *)&straPla[nCounti],1,sizeof(RGBQUAD),fpo); for(nCounti=0;nCounti<8;nCounti++) { for(nCountj=0;nCountj<64;nCountj++) fread(&naImage[nCountj][0],1,nWidth,fpi); for(nCountk=1;nCountk<64-2;nCountk++) { for(nCountl=1;nCountl<nWidth-2;nCountl++) { nRed=0,nGreen=0,nBlue=0; for(nCountm=0;nCountm<3;nCountm++) /*用9个点的均值柔化*/ for(nCountn=0;nCountn<3;nCountn++) { nPixel=(unsigned char)(naImage[nCountk-1+nCountm][nCountl-1+nCountn]); nRed+=straPla[nPixel].rgbRed; nGreen+=straPla[nPixel].rgbGreen; nBlue+=straPla[nPixel].rgbBlue; } nRed=nRed/9; nGreen=nGreen/9; nBlue=nBlue/9; nPixel=Match_f(nRed,nGreen,nBlue); naImage[nCountk][nCountl]=nPixel; } } for(nCountj=0;nCountj<64;nCountj++) fwrite(&naImage[nCountj][0],1,nWidth,fpo); } } Initial_f(int nChoice) { char szFilena1[30],szFilena2[30]; FILE *fpi, *fpo; printf("Input the bmp source file: "); scanf("%s",szFilena1); printf("Input the bmp termini file: "); scanf("%s", szFilena2); if((fpi=fopen(szFilena1,"rb"))==NULL) { printf("OPEN SOURCE FILE ERROR\n"); exit(0); } if((fpo=fopen(szFilena2,"wb"))==NULL) { printf("OPEN TERMINI FILE ERROR\n"); exit(0); } if(nChoice==3) Emboss_f(fpi,fpo); else if(nChoice==2) Sharp_f(fpi,fpo); else if(nChoice==1) Smooth_f(fpi,fpo); fclose(fpi); fclose(fpo); } void main() { int nChoice; do { printf("\n\t