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<![CDATA[
/*
in : 横は4バイト
*/
void FlipR(unsigned char *out, unsigned char *in, int inHeight, int inWidth, int inChannel, int direction){
int inStep, outStep;
// OpenCVで使用する画像データの横幅は4バイト区切りのため調整
inStep = inWidth * inChannel;
if( (inStep % 4) != 0){
inStep = inStep + (4 - inStep %4);
}
outStep = inHeight * inChannel;
if( (outStep % 4) != 0){
outStep = outStep + (4 - outStep %4);
}
switch(direction){
case 0:
FlipRight(out, outStep, in, inHeight, inWidth, inChannel, inStep);
break;
case 1:
FlipLeft(out, outStep, in, inHeight, inWidth, inChannel, inStep);
break;
}
}
void FlipRight(unsigned char *out, int outStep, unsigned char *in, int inHeight, int inWidth, int inChannel, int inStep){
int i, j;
switch(inChannel){
case 1:
// 8bit画像
for(i = 0; i < inHeight; ++i){
for(j = 0; j < inWidth; ++j){
out[j * outStep + (inHeight - i - 1)] = in[i * inStep + j];
}
}
break;
case 3:
// 24bit画像
for(i = 0; i < inHeight; ++i){
for(j = 0; j < inWidth; ++j){
out[j * outStep + (inHeight - i - 1) * 3] = in[i * inStep + j * 3];
out[j * outStep + (inHeight - i - 1) * 3 + 1] = in[i * inStep + j * 3 + 1];
out[j * outStep + (inHeight - i - 1) * 3 + 2] = in[i * inStep + j * 3 + 2];
}
}
break;
case 4:
// 32bit画像
for(i = 0; i < inHeight; ++i){
for(j = 0; j < inWidth; ++j){
out[j * outStep + (inHeight - i - 1) * 4] = in[i * inStep + j * 4];
out[j * outStep + (inHeight - i - 1) * 4 + 1] = in[i * inStep + j * 4 + 1];
out[j * outStep + (inHeight - i - 1) * 4 + 2] = in[i * inStep + j * 4 + 2];
out[j * outStep + (inHeight - i - 1) * 4 + 3] = in[i * inStep + j * 4 + 3];
}
}
break;
default:
break;
}
}
void FlipLeft(unsigned char *out, int outStep, unsigned char *in, int inHeight, int inWidth, int inChannel, int inStep){
int i, j;
switch(inChannel){
case 1:
// 8bit画像
for(i = 0; i < inHeight; ++i){
for(j = 0; j < inWidth; ++j){
out[(inWidth - j - 1) * outStep + i] = in[i * inStep + j];
}
}
break;
case 3:
// 24bit画像
for(i = 0; i < inHeight; ++i){
for(j = 0; j < inWidth; ++j){
out[(inWidth - j - 1) * outStep + i * 3] = in[i * inStep + j * 3];
out[(inWidth - j - 1) * outStep + i * 3 + 1] = in[i * inStep + j * 3 + 1];
out[(inWidth - j - 1) * outStep + i * 3 + 2] = in[i * inStep + j * 3 + 2];
}
}
break;
case 4:
// 32bit画像
for(i = 0; i < inHeight; ++i){
for(j = 0; j < inWidth; ++j){
out[(inWidth - j - 1) * outStep + i * 4] = in[i * inStep + j * 4];
out[(inWidth - j - 1) * outStep + i * 4 + 1] = in[i * inStep + j * 4 + 1];
out[(inWidth - j - 1) * outStep + i * 4 + 2] = in[i * inStep + j * 4 + 2];
out[(inWidth - j - 1) * outStep + i * 4 + 3] = in[i * inStep + j * 4 + 3];
}
}
break;
default:
break;
}
}]]>