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// Encoder
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// Encoder
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EncoderGrayCode::EncoderGrayCode(unsigned int _screenCols, unsigned int _screenRows, CodecDir _dir) : Encoder(_screenCols, _screenRows, _dir){
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EncoderGrayCode::EncoderGrayCode(unsigned int _screenCols, unsigned int _screenRows, CodecDir _dir) : Encoder(_screenCols, _screenRows, _dir){
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    // Number of horizontal encoding patterns
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    // Number of horizontal encoding patterns
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    // Encode every pixel column
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    Nhorz = 10;
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    Nhorz = ceilf(log2f((float)screenCols));
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    // Number of vertical encoding patterns
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    // Number of vertical encoding patterns
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    Nvert = ceilf(log2f((float)screenRows));
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    Nvert = 8;
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    // Set total pattern number
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    // Set total pattern number
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    if(dir & CodecDirHorizontal)
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    if(dir & CodecDirHorizontal)
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        this->N += Nhorz;
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        this->N += Nhorz;
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cv::Mat EncoderGrayCode::getEncodingPattern(unsigned int depth){
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cv::Mat EncoderGrayCode::getEncodingPattern(unsigned int depth){
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    return patterns[depth];
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    return patterns[depth];
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}
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}
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// Decoder
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// Decoder
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DecoderGrayCode::DecoderGrayCode(unsigned int _screenCols, unsigned int _screenRows, CodecDir _dir) : Decoder(_screenCols, _screenRows, _dir){
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DecoderGrayCode::DecoderGrayCode(CodecDir _dir) : Decoder(_dir){
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    // Number of horizontal encoding patterns
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    // Number of horizontal encoding patterns
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    Nhorz = ceilf(log2f((float)screenCols));
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    Nhorz = 10;
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    // Number of vertical encoding patterns
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    // Number of vertical encoding patterns
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    Nvert = ceilf(log2f((float)screenRows));
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    Nvert = 8;
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    if(dir & CodecDirHorizontal)
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        this->N += Nhorz;
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    if(dir & CodecDirVertical)
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        this->N += Nvert;
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    frames.resize(N);
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}
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void DecoderGrayCode::setFrame(unsigned int depth, const cv::Mat frame){
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    frames[depth] = frame;
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}
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}
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void DecoderGrayCode::decodeFrames(cv::Mat &up, cv::Mat &vp, cv::Mat &mask, cv::Mat &shading){
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void DecoderGrayCode::decodeFrames(const std::vector<cv::Mat> frames, cv::Mat &up, cv::Mat &vp, cv::Mat &mask, cv::Mat &shading){
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    // Get shading (max) image
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    // Get shading (max) image
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    shading = cv::Scalar(0);
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    shading = cv::Scalar(0);
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    for(unsigned int f=0; f<frames.size(); f++){
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    for(unsigned int f=0; f<frames.size(); f++){
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        shading = cv::max(shading, frames[f]);
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        shading = cv::max(shading, frames[f]);