Load cascade classifier from memory?

asked 2013-01-17 04:46:56 -0600

tmanthey
208 ●5 ●12

Is it possible to load a cascade classifier from memory? I would like to store it encrypted on disk and then load the decrypted classifier from memory.

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answered 2013-01-17 06:33:06 -0600

Alexander Smorkalov

5862 ●2 ●22 ●58 http://alex-alchemist....

CascadeClassifier class has read method that allows you to load cascade from FileNoe of FileStorage. FileStorage can be created in memory. See C++ sample filestorage.cpp as an example of usage FileStorage in memory.

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you've got a hint on my below problem?. tia

tmanthey ( 2013-01-21 10:07:29 -0600 )edit

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answered 2013-01-21 09:57:40 -0600

tmanthey
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Unfortunately it is not really working out. The problem is that there is now way I know to copy a buffer from Memory to the FileStorage.

I got until here.

    unsigned char cascadeBuffer[102400]; /* contains the complete cascade xml 
    <?xml version="1.0"?>
    <opencv_storage>
    <cascade>
    ...
    </cascade>
    </opencv_storage> */

int cascadeBufferLength; // the size of the cascade in the buffer

FileStorage fs("cascade.xml", FileStorage::READ|FileStorage::WRITE|FileStorage::MEMORY | FileStorage::FORMAT_XML);

But now what? I tried FileStorage::writeRaw but thats not quite what the name suggests.