Package com.luciad.imaging.operator

Class TLcdCropOp

java.lang.Object
com.luciad.imaging.operator.ALcdImageOperator
com.luciad.imaging.operator.TLcdCropOp
public class TLcdCropOp extends ALcdImageOperator
Crops an ALcdBasicImage by retaining a sub-rectangle of pixels.

Note: Cropping can affect the spatial bounds of the ALcdBasicImage and should hence be used with care when working with ALcdImageMosaic as the bounds of an individual ALcdBasicImage should not be altered. Use TLcdExpandOp to expand the image back to its original size after cropping.

Example


 // Using the static method:
 ALcdBasicImage inputImage = ...;
 ALcdImage outputImage = TLcdCropOp.crop(inputImage, 600, 50, 200, 175);

 // Using a data object:
 ALcdBasicImage inputImage = ...;
 TLcdCropOp op = new TLcdCropOp();
 ILcdDataObject params = op.getParameterDataType().newInstance();
 params.setValue(TLcdCropOp.INPUT_IMAGE, inputImage);
 params.setValue(TLcdCropOp.CROP_X, 600);
 params.setValue(TLcdCropOp.CROP_Y, 50);
 params.setValue(TLcdCropOp.CROP_WIDTH, 200);
 params.setValue(TLcdCropOp.CROP_HEIGHT, 175);
 ALcdImage outputImage = op.apply(params);
Input
Output
Since:
2014.0

  • Field Details

    • NAME

      public static final String NAME
      Name of the operator.
      See Also:

    • INPUT_IMAGE

      public static final TLcdDataProperty INPUT_IMAGE
      The input image.

    • CROP_X

      public static final TLcdDataProperty CROP_X
      X coordinate of the cropped region.

    • CROP_Y

      public static final TLcdDataProperty CROP_Y
      Y coordinate of the cropped region.

    • CROP_WIDTH

      public static final TLcdDataProperty CROP_WIDTH
      Width of the cropped region.

    • CROP_HEIGHT

      public static final TLcdDataProperty CROP_HEIGHT
      Height of the cropped region.

    • CROP_FILTER_TYPE

      public static final TLcdDataType CROP_FILTER_TYPE
      Input data type of the operator.

  • Constructor Details

    • TLcdCropOp

      public TLcdCropOp()
      Default constructor.

  • Method Details

    • apply

      public ALcdImage apply(ILcdDataObject aParameters)
      Description copied from class: ALcdImageOperator
      Applies this operator to the given input parameters. The parameters are stored in a data object which must be of the type given by ALcdImageOperator.getParameterDataType().
      Specified by:
      apply in class ALcdImageOperator
      Parameters:
      aParameters - the parameters for the operator
      Returns:
      the image produced by the operator

    • crop

      public static ALcdImage crop(ALcdBasicImage aSource, int aCropX, int aCropY, int aCropWidth, int aCropHeight)
      Creates a crop operator for a given input image
      Parameters:
      aSource - the image to be processed
      aCropX - x coordinate of the cropped region
      aCropY - y coordinate of the cropped region
      aCropWidth - width of the cropped region
      aCropHeight - height of the cropped region
      Returns:
      the crop operator