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Commit Graph

1 Commits (5237387bb38e3868db3e94375f2d59db3681b43c)

Author	SHA1	Message	Date
Lim	9aa74df09e	new module: intensity_transform (includes gamma correction, log transfomration, autoscaling, contrast stretching) ... build error fix: remove trailing whitespaces, casting types minor edits based on alalek's feedback removing trailing whitespace using std::array for LUT argument	5 years ago
Tham	a4a8b84e93	Implement image hash modules (#688) ... * first commit * first commit * adjust code layout * round mean value * add missed header * remove useless header * remove useless header * first commit * first commit * first commit * Encapsule function averageHash by class * remove export macro * encapsulate phash algo by class * first commit * fix bugs of createHash and fillBlcoks * 1 : add create function 2 : add overload functions * implement get set functions * fix bug--destination depth should be CV_32F * first commit * first commit * 1 : fix bug--forgot '"' 2 : forgot to include iostream * fix warnings * remove tab * remove trailing white space * remove trailing white space * remove trailing white space * remove trailing white space * remove trailing white space * remove trailing white space * first commit * remove trailing white space * remove trailing white space * remove trailing white space * reduce redundance operation * add explanation of img_hash * remove useless comments * remove trailing space * first commit * fix missed symbol * add new defgroup and change all defgroup to ihash * fix namespace confliction * change namespace from ihash to img_hash * change ihash to img_hash * change include guard * forbid implicit conversion * first commit * 1 : declare function findFeatureVector 2 : forward declare test class--RavialVarHashTester as friend * first commit * replace auto with explicit type * export some symbols, for initialization and testing * remove trailing white space * add namespace cv * fix type cast warning and define default constrcutor/destructor * declare and define RadialVarHashTester in namespace * remove default constructor/destructor * exports functions findFeatures and destructor * remove trailing white space * fix bug--wrong definition of destructor * remove trailing white space * implement findFeatureVector * add test case for findFeatureVector * 1 : fix bug--forgot to allocate space for input 2 : fix bug--compare the results of pixPerLine with wrong matrix * remove trailing space * implement hashCalculate * add test case for hashCalculate * remove trailing white space * avoid hiding parameter * refine codes and keep the original range * adjust expected hash value since the range of hash change * add comment * reduce scope * remove trailing white space * adjust format * add new function compare * implement compute functions * use array as buffer of cv::Mat, avoid memory allocation * remove trailing whitespace * 1 : implement cross-correlation rather than using matchTemplate since the results of matchTemplate are weird 2 : remove gamma param, although the paper said PHash apply gamma correction on the image, but the codes do not do that(I think it is a bug of PHash) 3 : create function can specify sigma and numOfAngleLine 4 : Use blurImg to replace normalizeImg 5 : remove useless parameters which related to gamma correction * add example of radial variance hash * use buffer to avoid memory allocation and use enum to specify hash size * remove useless header * fix bug--constructor only accept two params * add comments * transpose projection matrix, friendlier for cache hit * use pointer to access projection value * function able to specify sigma and numOfAngleLine * add get/set functions * implement image hash algo--block mean hash * include block mean hash and add comments * remove trailing whitespace * fix warning--compare with sign and unsigned value * implement destructor and change mode type to size_t * add example of block mean hash * compress the bits of hash * function--blockMeanHash able to set mode * fix type cast warning and style * change expected result to bool * compress the hash value from 16 bytes to 8 bytes * update comments * compress hash from 16 bytes to 8 bytes * use peak value of cross correlation as comparison result * add limit header * first commit * add group and header file of color moment hash * should not use auto, it is c++11 feature * support python binding * implement destructor of AverageHash * support python binding * support python binding * support python binding * change type to inputArray and outputArray, easier for python binding * all algorithms support input type CV_8UC4,CV_8UC3 and CV_8UC1 * Provide better instructions * Make it more pleasant to read * Add information of speed comparsion * remove trailing white space * remove useless blank line * refine comments of example * fix link error * refine title * 1 : implement function "getDefaultName" 2 : adjust style * Update README.md 1 : Fix wrong branch 2 : Add another solution to download img_hash * img_hash: refactored interfaces to use pImpl * remove trailing white space * img_hash: use type-safe pImpl * change name, easier to find the source file * 1 : narrow scope of ImgHashImpl 2 : use static cast to replace dynamic cast because class hierarchy of img_hash is very straightforward * should not declare ImgHashImpl api in the header file of ImgHashBase, this increase chance of breaking ABI * should not declare ImgHashImpl api in the header file of ImgHashBase, this increase chance of breaking ABI * fix warning, because unelaborated friend declaration is a C++11 extension * first commit * fix bug, except of windows, other platforms cannot access private member. pimpl only accessable by the class itself, therefore I think declare everything as public is quite safe * first commit comparison and computation charts * update chart link	8 years ago