Method setValues

PIK/PIK.cpp:529–638

    }

    void setValues(ScreenTypeEnum screenType, // Screen Type: The type of background screen used for the key.
                   const OfxRGBColourD& color,
                   double redWeight, // Red Weight: Determines how the red channel and complement channel (blue for a green screen, green for a blue screen) are weighted in the keying calculation.
                   double blueGreenWeight, // Blue/Green Weight: Determines how the red channel and complement channel (blue for a green screen, green for a blue screen) are weighted in the keying calculation.
                   const OfxRGBColourD& alphaBias,
                   const OfxRGBColourD& despillBias,
                   bool lmEnable, // Luminane Match Enable: Luminance Match Enable: Adds a luminance factor to the color difference algorithm.
                   double level, // Screen Range: Helps retain blacks and shadows.
                   double luma, // Luminance Level: Makes the matte more additive.
                   bool llEnable, // Luminance Level Enable: Disable the luminance level when us bg influence.
                   bool autolevels, // Autolevels: Removes hard edges from the matte.
                   bool yellow, // Yellow: Override autolevel with yellow component.
                   bool cyan, // Cyan: Override autolevel with cyan component.
                   bool magenta, // Magenta: Override autolevel with magenta component.
                   bool ss, // Screen Subtraction: Have the keyer subtract the foreground or just premult.
                   bool clampAlpha, // Clamp: Clamp matte to 0-1.
                   bool rgbal, // Legalize rgba relationship.
                   double screenClipMin,
                   double screenClipMax,
                   ReplaceEnum screenReplace,
                   const OfxRGBColourD& screenReplaceColor,
                   SourceAlphaEnum sourceAlpha,
                   ReplaceEnum insideReplace,
                   const OfxRGBColourD& insideReplaceColor,
                   bool noKey, // No Key: Apply background luminance and chroma to Fg rgba input - no key is pulled.
                   bool ubl, // Use Bg Lum: Have the output rgb be biased by the bg luminance.
                   bool ubc, // Use Bg Chroma: Have the output rgb be biased by the bg chroma.
                   ColorspaceEnum colorspace,
                   OutputModeEnum outputMode)
    {
        // all colors are normalized with unit luminance
        _alphaBias[0] = (float)(std::max)(0.0001, alphaBias.r);
        _alphaBias[1] = (float)(std::max)(0.0001, alphaBias.g);
        _alphaBias[2] = (float)(std::max)(0.0001, alphaBias.b);
        float l = luminance(_colorspace, _alphaBias);
        _alphaBias[0] /= l;
        _alphaBias[1] /= l;
        _alphaBias[2] /= l;
        _despillBias[0] = (float)(std::max)(0.0001, despillBias.r);
        _despillBias[1] = (float)(std::max)(0.0001, despillBias.g);
        _despillBias[2] = (float)(std::max)(0.0001, despillBias.b);
        _despillBias[0] /= l;
        _despillBias[1] /= l;
        _despillBias[2] /= l;
        if (screenType == eScreenTypePick) {
            _screenType = (color.g / _alphaBias[1] > color.b / _alphaBias[2]) ? eScreenTypeGreen : eScreenTypeBlue;
            _color[0] = (float)(color.r / _alphaBias[0]);
            _color[1] = (float)(color.g / _alphaBias[1]);
            _color[2] = (float)(color.b / _alphaBias[2]);
            _useColor = true;
        } else {
            _screenType = screenType;
            _useColor = false;
        }
        _redWeight = redWeight;
        _blueGreenWeight = blueGreenWeight;
        _lmEnable = lmEnable;
        _level = level;