Class J2KImageReadParam

  • Direct Known Subclasses:
    J2KImageReadParamJava

    public class J2KImageReadParam
    extends ImageReadParam
    A subclass of ImageReadParam for reading images in the JPEG 2000 format.

    The decoding parameters for JPEG 2000 are listed below:

    JPEG 2000 Plugin Decoding Parameters
    Parameter Name Description
    decodingRate Specifies the decoding rate in bits per pixel (bpp) where the number of pixels is related to the image's original size (Note: this parameter is not affected by resolution). The default is Double.MAX_VALUE. It means decoding with the encoding rate.
    resolution Specifies the resolution level wanted for the decoded image (0 means the lowest available resolution, the resolution level gives an image with the original dimension). If the given index is greater than the number of available resolution levels of the compressed image, the decoded image has the lowest available resolution (among all tile-components). This parameter affects only the inverse wavelet transform and not the number of bytes read by the codestream parser, which depends only on decodingRate. The default value, -1, means to use the resolution level at encoding.
    • Constructor Detail

      • J2KImageReadParam

        public J2KImageReadParam()
        Constructs a default instance of J2KImageReadParam.
    • Method Detail

      • setDecodingRate

        public void setDecodingRate​(double rate)
        Sets decodingRate.
        Parameters:
        rate - the decoding rate in bits per pixel.
        See Also:
        getDecodingRate()
      • getDecodingRate

        public double getDecodingRate()
        Gets decodingRate.
        Returns:
        the decoding rate in bits per pixel.
        See Also:
        setDecodingRate(double)
      • setResolution

        public void setResolution​(int resolution)
        Sets resolution.
        Parameters:
        resolution - the resolution level with 0 being the lowest available.
        See Also:
        getResolution()
      • getResolution

        public int getResolution()
        Gets resolution.
        Returns:
        the resolution level with 0 being the lowest available.
        See Also:
        setResolution(int)