Methods and apparatus for directional texture generation using image warping

A system, comprising:

• at least one processor;
• and
• a memory comprising program instructions, wherein the program instructions are executable by the at least one processor to:
• obtain input selecting one of a plurality of directional texture element primitives, a directional texture element comprising a texture that has a directional flow characteristic, and the plurality of directional texture element primitives including images of real examples of directional texture elements;
• obtain a stroke adding the selected primitive to a target image, the stroke indicating a location in the target image and an intended direction of flow for the selected primitive in the target image;
• automatically adjust the selected primitive according to the stroke;
• and
• apply the adjusted selected primitive to the indicated location of the target image.

A computer-readable storage device comprising program instructions stored thereon that, responsive to execution, perform operations comprising:

• obtaining input selecting one of a plurality of directional texture element primitives, a directional texture element comprising a texture that has a directional flow characteristic, and the plurality of directional texture element primitives including images of real examples of directional texture elements;
• obtaining a stroke adding the selected primitive to a target image, the stroke indicating a location in the target image and an intended direction of flow for the selected primitive in the target image;
• automatically adjusting the selected primitive according to the stroke;
• and
• applying the adjusted selected primitive to the indicated location of the target image.