One embodiment of the present invention provides a system that uses nonlinear filtering while resizing an image to preserve sharp detail. The system starts with an original image, which is a digital image comprised of a plurality of pixels. Next, the system resizes the original image. This involves first producing an initial resized image by using neighboring pixel values in the original image (or a conventional resizing operation) to produce initial values for subpixel locations in the original...

Methods and products are disclosed concerning extraction of selected components of a warping of an image. Given a warped image and a distortion grid, the distortion at any point in the image may be viewed locally as a displacement and a linear transform. The linear transform can be manipulated to extract elements of the local distortion such as skew, rotation, magnification and combinations. The selected components may then be selectively applied at other locations of the same or a different ima...

Techniques for modifying an image may be applied to heal texture areas within the image. A region to be healed in an original image may be identified, and a differential representation may be calculated for at least a portion of a texture source image that provides sample texture. Samples of the texture source image differential representation may be copied to a location corresponding to the identified modification region to generate a new differential representation for the modification region....

A method and system for generating a portion of an image uses n differential representations of an image texture, with n>1, which are mixed to produce a synthesized texture. The n differential representations are modified by weighting each differential representation using a corresponding coefficient, where a sum of squares of the coefficients is equal to a value of approximately one. The n modified differential representations are then combined to produce a combined differential representati...

One embodiment of the present invention relates to a system for reconstructing an image. During operation, the system receives an original image, wherein the original image includes a defective area to be reconstructed. The system also receives a reference to a texture image, which contains a texture to be used during the reconstruction. The system then divides the values of pixels in the defective area and surrounding boundary pixels, by the values of corresponding pixels in the texture image t...

This invention relates to a composition, and a method for its production, of a water resistant and heat insulating silicate material in the form of blocks and articles. Such water resistant and heat insulating material possesses a low bulk mass (of from 100 to 300 kg/m.sup.3) and improved heat insulating capacity (=0.04-0.1 W/m.deg.) with a compressive strength of from 0.3 to 1 MPa. The starting chemical composition for the production of the heat insulating material is comprehended within the fo...

A method and apparatus, including a computer program apparatus, implementing techniques for warping a digital image. The iterative mesh-based warping techniques select a plurality of elements from a dense mesh, each element of the mesh corresponding to one or more pixels of a digital image and representing a vector of displacement values. A kernel is applied iteratively to the mesh in order to update the selected elements with new displacement values until a termination condition is achieved, su...

A method and computer program product for generating a warping effect in an image having a plurality of regions, each associated with a distortion vector. The method includes defining a path segment vector in response to user movement of a brush cursor; modifying one or more distortion vectors having originations covered by the cursor based on the path segment vector; and repeating defining and modifying to produce a warping effect.

Methods and apparatus implementing systems and techniques for adjusting images. In general, in one implementation, the technique includes: receiving input defining an adjustment to be applied to a differential representation of a source image, calculating the differential representation of the source image, producing a structural representation of the source image, the structural representation corresponding to multiple types of contrast in the source image, modifying the differential representa...

One embodiment of the present invention provides a system that deposterizes a posterized image. During operation, the system receives a posterized image, wherein pixels in the posterized image have color values that belong to a set of posterized color values, which is a subset of a set of possible color values for the deposterized image. Next, the system generates a deposterized image from the posterized image, wherein color values in the deposterized image are not restricted to the set of poste...