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Merge pull request #13382 from LaurentBerger:imreadsize

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* try to solve #13381

* Add note
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LaurentBerger 2018-12-09 13:05:27 +01:00 committed by Alexander Alekhin
parent 40a53e3d64
commit f1dc26d7ce
2 changed files with 12 additions and 9 deletions
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2
modules/imgcodecs/include/opencv2/imgcodecs.hpp
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@ -171,6 +171,8 @@ Currently, the following file formats are supported:
[Vector](http://www.gdal.org/ogr_formats.html).
- If EXIF information are embedded in the image file, the EXIF orientation will be taken into account
and thus the image will be rotated accordingly except if the flag @ref IMREAD_IGNORE_ORIENTATION is passed.
- By default number of pixels must be less than 2^30. Limit can be set using system
variable OPENCV_IO_MAX_IMAGE_PIXELS
@param filename Name of file to be loaded.
@param flags Flag that can take values of cv::ImreadModes

19
modules/imgcodecs/src/loadsave.cpp
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@ -51,6 +51,8 @@
#undef max
#include <iostream>
#include <fstream>
#include <opencv2/core/utils/configuration.private.hpp>
/****************************************************************************************\
* Image Codecs *
@ -58,18 +60,17 @@
namespace cv {
// TODO Add runtime configuration
#define CV_IO_MAX_IMAGE_PARAMS (50)
#define CV_IO_MAX_IMAGE_WIDTH (1<<20)
#define CV_IO_MAX_IMAGE_HEIGHT (1<<20)
#define CV_IO_MAX_IMAGE_PIXELS (1<<30) // 1 Gigapixel
static const size_t CV_IO_MAX_IMAGE_PARAMS = cv::utils::getConfigurationParameterSizeT("OPENCV_IO_MAX_IMAGE_PARAMS", 50);
static const size_t CV_IO_MAX_IMAGE_WIDTH = utils::getConfigurationParameterSizeT("OPENCV_IO_MAX_IMAGE_WIDTH", 1 << 20);
static const size_t CV_IO_MAX_IMAGE_HEIGHT = utils::getConfigurationParameterSizeT("OPENCV_IO_MAX_IMAGE_HEIGHT", 1 << 20);
static const size_t CV_IO_MAX_IMAGE_PIXELS = utils::getConfigurationParameterSizeT("OPENCV_IO_MAX_IMAGE_PIXELS", 1 << 30);
static Size validateInputImageSize(const Size& size)
{
CV_Assert(size.width > 0);
CV_Assert(size.width <= CV_IO_MAX_IMAGE_WIDTH);
CV_Assert(static_cast<size_t>(size.width) <= CV_IO_MAX_IMAGE_WIDTH);
CV_Assert(size.height > 0);
CV_Assert(size.height <= CV_IO_MAX_IMAGE_HEIGHT);
CV_Assert(static_cast<size_t>(size.height) <= CV_IO_MAX_IMAGE_HEIGHT);
uint64 pixels = (uint64)size.width * (uint64)size.height;
CV_Assert(pixels <= CV_IO_MAX_IMAGE_PIXELS);
return size;
@ -998,7 +999,7 @@ cvSaveImage( const char* filename, const CvArr* arr, const int* _params )
if( _params )
{
for( ; _params[i] > 0; i += 2 )
CV_Assert(i < CV_IO_MAX_IMAGE_PARAMS*2); // Limit number of params for security reasons
CV_Assert(static_cast<size_t>(i) < cv::CV_IO_MAX_IMAGE_PARAMS*2); // Limit number of params for security reasons
}
return cv::imwrite_(filename, cv::cvarrToMat(arr),
i > 0 ? std::vector<int>(_params, _params+i) : std::vector<int>(),
@ -1029,7 +1030,7 @@ cvEncodeImage( const char* ext, const CvArr* arr, const int* _params )
if( _params )
{
for( ; _params[i] > 0; i += 2 )
CV_Assert(i < CV_IO_MAX_IMAGE_PARAMS*2); // Limit number of params for security reasons
CV_Assert(static_cast<size_t>(i) < cv::CV_IO_MAX_IMAGE_PARAMS*2); // Limit number of params for security reasons
}
cv::Mat img = cv::cvarrToMat(arr);
if( CV_IS_IMAGE(arr) && ((const IplImage*)arr)->origin == IPL_ORIGIN_BL )