Package com.jhlabs.image

Class WarpGrid

  • public class WarpGrid
extends java.lang.Object
    A warp grid. From "A simplified approach to Image Processing" by Randy Crane

    • Field Summary

      Fields 
      Modifier and Type Field Description
      int cols  
      int rows  
      float[] xGrid  
      float[] yGrid  

    • Constructor Summary

      Constructors 
      Constructor Description
      WarpGrid​(int rows, int cols, int w, int h)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void addCol​(int before)
      Add a new column to the grid.
      void addRow​(int before)
      Add a new row to the grid.
      protected void interpolateSpline​(float[] xKnots, float[] yKnots, int offset, int length, float[] splineY, int splineOffset, int splineLength)  
      protected void interpolateSpline2​(float[] xKnots, float[] yKnots, int offset, float[] splineY, int splineOffset, int splineLength)  
      void lerp​(float t, WarpGrid destination, WarpGrid intermediate)  
      void removeCol​(int r)
      Remove a column from the grid.
      void removeRow​(int r)
      Remove a row from the grid.
      void warp​(int[] inPixels, int cols, int rows, WarpGrid sourceGrid, WarpGrid destGrid, int[] outPixels)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • xGrid

        public float[] xGrid

      • yGrid

        public float[] yGrid

      • rows

        public int rows

      • cols

        public int cols

    • Constructor Detail

      • WarpGrid

        public WarpGrid​(int rows,
                int cols,
                int w,
                int h)

    • Method Detail

      • addRow

        public void addRow​(int before)
        Add a new row to the grid. "before" must be in the range 1..rows-1. i.e. you can only add rows inside the grid.
        Parameters:
        before - The row before

      • addCol

        public void addCol​(int before)
        Add a new column to the grid. "before" must be in the range 1..cols-1. i.e. you can only add columns inside the grid.
        Parameters:
        before - The column before.

      • removeRow

        public void removeRow​(int r)
        Remove a row from the grid.
        Parameters:
        r - The row to remove.

      • removeCol

        public void removeCol​(int r)
        Remove a column from the grid.
        Parameters:
        r - The column to remove.

      • lerp

        public void lerp​(float t,
                 WarpGrid destination,
                 WarpGrid intermediate)

      • warp

        public void warp​(int[] inPixels,
                 int cols,
                 int rows,
                 WarpGrid sourceGrid,
                 WarpGrid destGrid,
                 int[] outPixels)

      • interpolateSpline

        protected void interpolateSpline​(float[] xKnots,
                                 float[] yKnots,
                                 int offset,
                                 int length,
                                 float[] splineY,
                                 int splineOffset,
                                 int splineLength)

      • interpolateSpline2

        protected void interpolateSpline2​(float[] xKnots,
                                  float[] yKnots,
                                  int offset,
                                  float[] splineY,
                                  int splineOffset,
                                  int splineLength)