Examples of javax.media.jai.Warp

javax.media.jai.Warp
A description of an image warp.
The central method of a Warp is warpSparseRect(), which returns the source pixel positions for a specified (subdivided) rectangular region of the output.
As in the Interpolation class, pixel positions are represented using scaled integer coordinates, yielding subpixel accuracy but still allowing the use of integer arithmetic. The degree of precision is set by means of the getSubSampleBitsH() and getSubSampleBitsV parameters to the warpRect() method. @see Interpolation @see WarpAffine @see WarpGrid @see WarpPerspective @see WarpPolynomial @see WarpQuadratic @see WarpCubic @see WarpGeneralPolynomial @see WarpOpImage

                        // otherwise the warped roi image layout won't be computed properly
                        mappingBB = sourceBB.union(targetBB);
                    } else {
                        mappingBB = targetBB;
                    }
                    Warp warp = wb.buildWarp(chained, mappingBB);


                    // do the switch only if we get a warp that is as fast as the original one
                    Warp sourceWarp = (Warp) op.getParameterBlock().getObjectParameter(0);
                    if (warp instanceof WarpGrid
                            || warp instanceof WarpAffine
                            || !(sourceWarp instanceof WarpGrid || sourceWarp instanceof WarpAffine)) {
                        // and then the JAI Operation
                        PlanarImage sourceImage = op.getSourceImage(0);

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