Class GrayscaleFilter

constructor

• new GrayscaleFilter(source?): GrayscaleFilter

• Parameters

  • Optional source: {
        _type?: "GrayscaleFilter";
        blackOutliersFraction?: number;
        borderWidthFraction?: number;
        whiteOutliersFraction?: number;
    }

    • Optional Readonly _type?: "GrayscaleFilter"

    • Optional blackOutliersFraction?: number

      Clip this fraction of the darkest pixels in operations such as autocontrast. Increasing the range of middle gray levels at the expense of the brightest and darkest levels may improve the overall contrast and quality of the result. Sum of blackOutliersFraction and whiteOutliersFraction must be less than 1 but usually good values for the parameters do not exceed 0.05; Default is 0.0

    • Optional borderWidthFraction?: number

      Ignore this fraction of pixels at the edge of the image when calculating statistics. Pixels at the edge of the image typically have poor statistics. Ignoring them and using only the inner pixels when calculating certain statistics can substantially improve the quality of the result. The value must be less than 0.5 but usually good values are between 0 and 0.15. Default is 0.06

    • Optional whiteOutliersFraction?: number

      Clip this fraction of the brightest pixels in operations such as autocontrast. Increasing the range of middle gray levels at the expense of the brightest and darkest levels may improve the overall contrast and quality of the result. Sum of blackOutliersFraction and whiteOutliersFraction must be less than 1 but usually good values for the parameters do not exceed 0.05; Default is 0.02

  Returns GrayscaleFilter

Readonly _type

blackOutliersFraction

borderWidthFraction

whiteOutliersFraction