本文整理汇总了C++中ImageDecoder::nextPage方法的典型用法代码示例。如果您正苦于以下问题：C++ ImageDecoder::nextPage方法的具体用法？C++ ImageDecoder::nextPage怎么用？C++ ImageDecoder::nextPage使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ImageDecoder的用法示例。
在下文中一共展示了ImageDecoder::nextPage方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: mat
/**
* Read an image into memory and return the information
*
* @param[in] filename File to load
* @param[in] flags Flags
* @param[in] mats Reference to C++ vector<Mat> object to hold the images
*
*/
static bool
imreadmulti_(const String& filename, int flags, std::vector<Mat>& mats)
{
/// Search for the relevant decoder to handle the imagery
ImageDecoder decoder;
#ifdef HAVE_GDAL
if (flags != IMREAD_UNCHANGED && (flags & IMREAD_LOAD_GDAL) == IMREAD_LOAD_GDAL){
decoder = GdalDecoder().newDecoder();
}
else{
#endif
decoder = findDecoder(filename);
#ifdef HAVE_GDAL
}
#endif
/// if no decoder was found, return nothing.
if (!decoder){
return 0;
}
/// set the filename in the driver
decoder->setSource(filename);
// read the header to make sure it succeeds
if (!decoder->readHeader())
return 0;
for (;;)
{
// grab the decoded type
int type = decoder->type();
if( (flags & IMREAD_LOAD_GDAL) != IMREAD_LOAD_GDAL && flags != IMREAD_UNCHANGED )
{
if ((flags & CV_LOAD_IMAGE_ANYDEPTH) == 0)
type = CV_MAKETYPE(CV_8U, CV_MAT_CN(type));
if ((flags & CV_LOAD_IMAGE_COLOR) != 0 ||
((flags & CV_LOAD_IMAGE_ANYCOLOR) != 0 && CV_MAT_CN(type) > 1))
type = CV_MAKETYPE(CV_MAT_DEPTH(type), 3);
else
type = CV_MAKETYPE(CV_MAT_DEPTH(type), 1);
}
// read the image data
Mat mat(decoder->height(), decoder->width(), type);
if (!decoder->readData(mat))
{
// optionally rotate the data if EXIF' orientation flag says so
if( (flags & IMREAD_IGNORE_ORIENTATION) == 0 && flags != IMREAD_UNCHANGED )
{
ApplyExifOrientation(filename, mat);
}
break;
}
mats.push_back(mat);
if (!decoder->nextPage())
{
break;
}
}
return !mats.empty();
}