qimageblitz

[zvezdochiot]

Hi @ksharindam .

See https://sourceforge.net/projects/qimageblitz/

cat qimageblitz.h

class QIMAGEBLITZ_EXPORT Blitz
{
public:
    enum GradientType {VerticalGradient=0, HorizontalGradient, DiagonalGradient,
        CrossDiagonalGradient, PyramidGradient, RectangleGradient,
        PipeCrossGradient, EllipticGradient};

    enum RGBChannel{Grayscale=0, Brightness, Red, Green, Blue, Alpha, All};
    enum EffectQuality{Low=0, High};

    enum ScaleFilterType{UndefinedFilter=0, PointFilter, BoxFilter,
        TriangleFilter, HermiteFilter, HanningFilter, HammingFilter,
        BlackmanFilter, GaussianFilter, QuadraticFilter, CubicFilter,
        CatromFilter, MitchellFilter, LanczosFilter, BesselFilter,
        SincFilter};

    enum ModulationType{Intensity=0, Saturation, HueShift, Contrast};
    static bool invert(QImage &img, QImage::InvertMode mode =
                       QImage::InvertRgb);
    static bool grayscale(QImage &img, bool reduceDepth=false);
     static QImage smoothScale(QImage &img, const QSize &sz,
                              Qt::AspectRatioMode aspectRatio =
                              Qt::IgnoreAspectRatio);
    static QImage smoothScale(QImage &img, int dw, int dh,
                              Qt::AspectRatioMode aspectRatio =
                              Qt::IgnoreAspectRatio);
    static QImage smoothScaleFilter(QImage &img, const QSize &sz,
                                    float blur=1.0,
                                    ScaleFilterType filter=BlackmanFilter,
                                    Qt::AspectRatioMode aspectRatio =
                                    Qt::IgnoreAspectRatio);
    static QImage smoothScaleFilter(QImage &img, int dwX, int dwY,
                                    float blur=1.0,
                                    ScaleFilterType filter=BlackmanFilter,
                                    Qt::AspectRatioMode aspectRatio =
                                    Qt::IgnoreAspectRatio);

    static QImage convolve(QImage &img, int matrix_size, float *matrix);
    static QImage convolveInteger(QImage &img, int matrix_size, int *matrix,
                                  int divisor=0);
    static QImage blur(QImage &img, int radius=3);
    static QImage gaussianBlur(QImage &img, float radius=0.0, float sigma=1.0);
    static QImage edge(QImage &img);
    static QImage convolveEdge(QImage &img, float radius=0.0,
                               EffectQuality quality=High);
    static QImage gaussianSharpen(QImage &img, float radius=0.0, float sigma=1.0,
                                  EffectQuality quality=High);
    static QImage sharpen(QImage &img, int radius=3);
    static QImage emboss(QImage &img, float radius=0.0, float sigma=1.0,
                         EffectQuality quality=High);
    static QImage antialias(QImage &img);
    static QImage& despeckle(QImage &img);
    static QImage& contrast(QImage &img, bool sharpen, int weight=3);
    static bool equalize(QImage &img);
    static bool normalize(QImage &img);
    static QImage& intensity(QImage &img, float percent);
    static QImage& channelIntensity(QImage &img, float percent,
                                    RGBChannel channel);
    static QImage& desaturate(QImage &img, float desat = 0.5);
    static QImage& fade(QImage &img, float val, const QColor &color);
    static QImage& flatten(QImage &img, const QColor &ca, const QColor &cb);
    static QImage threshold(QImage &img, unsigned char thresholdValue=127,
                            RGBChannel channel=Grayscale,
                            unsigned int aboveColor=qRgb(255, 255, 255),
                            unsigned int belowColor=qRgb(0, 0, 0));
    static QImage swirl(QImage &img, float degrees=60.0);
    static QImage implode(QImage &img, float amount=0.3);
    static QImage wave(QImage &img, float amplitude=25.0, float frequency=150.0,
                       unsigned int background=0);
    static QImage oilPaint(QImage &img, float radius=0.0,
                           EffectQuality quality=High);
    static QImage charcoal(QImage &img);
    static QImage gradient(const QSize &size, const QColor &ca,
                           const QColor &cb, GradientType type);
    static QImage grayGradient(const QSize &size, unsigned char ca,
                               unsigned char cb, GradientType type);
    static QImage unbalancedGradient(const QSize &size, const QColor &ca,
                                     const QColor &cb, GradientType type,
                                     int xfactor=100, int yfactor=100);
    static QImage grayUnbalancedGradient(const QSize &size, unsigned char ca,
                                         unsigned char cb, GradientType type,
                                         int xfactor=100, int yfactor=100);
    static QImage& modulate(QImage &img, QImage &modImg, bool reverse,
                            ModulationType type, int factor,
                            RGBChannel channel);
};

[ksharindam]

What are you suggesting?

[zvezdochiot]

Hi @ksharindam.

I would like a separate library with the QImageFilter class (then filters can be used in plugins), but you can simply add to the collection of filters from other products that use QImage.

[ksharindam]

Please be little elaborative when you next time post a issue or question.
The title must be one line description instead of a single word. So that, people understands what the issue is about.