Cameras, other imaging devices, and methods having non-uniform image remapping using a small data-set of distortion vectors
View Patent ↗A camera has a body and an electronic capture unit mounted in the body. The electronic capture unit selectively captures and stores a scene image as a representational electronic image having a first array of pixels. A control system is mounted in the body. The control system provides a remapped electronic image having a second array of pixels. A memory unit is disposed in the body. The memory unit stores a data-set defining an non-uniform mapping between a plurality of primary input coordinates mappable on said first array of pixels and plurality of primary output coordinates mappable on said second array of pixels. The control system uses the data-set to remap the pixels of the input electronic image to provide the remapped electronic image.
1. A method for operating an electronic image capture device, the method comprising:
capturing an electronic image of a scene;
forming an output image by:
generating a background image showing a portion of the captured electronic image;
applying a template over less than all of the background image, the template including a opening;
generating a modified version of a section of the portion of the captured electronic image: and,
overlaying the opening with the modified version of the electronic image.
2. The method of claim 1 , wherein the template includes a drawing instrument and wherein the modified version of the electronic image appears to have been hand drawn using the drawing instrument.
3. The method of claim 2 , wherein the modified version of the electronic image has a cartoon-like appearance.
4. The method of claim 2 , wherein the modified version of the electronic image appears to have been drawn with a pencil.
5. The method of claim 2 , wherein the modified version of the electronic image shows an outline image.
6. The method of claim 1 , wherein stored template data, distortion map data and processing control information are used to generate the output image with the template data being used to generate said template, and with the distortion map data and the processing control information being used to automatically to generate the modified version of the electronic image.
7. The method of claim 6 , wherein the distortion map data defines a plurality of primary coordinate pairs, each said primary coordinate pair having an input coordinate associated with the captured electronic image and an output coordinate associated with the output image.
8. The method of claim 7 , wherein the output coordinates of the primary coordinate pairs are arranged in a two-dimensional grid superimposed over at least a portion of the output image.
9. The method of claim 8 , further comprising the step of using the primary coordinate pairs to compute secondary coordinate pairs, wherein each said primary coordinate pair has an input coordinate associated with the captured electronic image and a secondary coordinate associated with the output image.
10. The method of claim 9 , wherein four primary coordinate pairs are used to compute each secondary coordinate pair.
11. The method of claim 10 , wherein the secondary coordinate pairs are computed using distance weighted averages of the four nearest primary coordinate pairs.
12. An electronic camera comprising:
an electronic capture unit for capturing images;
a processor operable to cause the electronic image capture unit to capture an image of a scene and to form an output image by generating a background image showing a portion of the captured electronic image; and
wherein the processor applies a template over less than all of the background image, the template including a opening; generates a modified version of a section of the portion of the captured electronic image; and,
overlays the opening with the modified version of the electronic image.
13. The electronic camera of claim 12 , wherein the template shows a drawing instrument drawing the modified version of the electronic image and wherein the modified version of the electronic image appears to have been drawn using the drawing instrument.
14. The electronic camera of claim 12 , wherein the processor is further operable to perform the steps of generating the output image using template data, distortion map data and processing control information, with the template data being used to generate said template, and wherein the distortion map data and with the processing control information are used to automatically generate the modified version of the electronic image.
15. The electronic camera of claim 12 , where distortion map data defines a plurality of primary coordinate pairs, each said primary coordinate pair having an input coordinate associated with the captured electronic image and an output coordinate associated with the output image.
16. The electronic camera of claim 15 , wherein the output coordinates of the primary coordinate pairs are arranged in a two-dimensional grid superimposed over at least a portion of the output image.
17. The electronic camera of claim 16 , wherein the processor uses the primary coordinate pairs to compute secondary coordinate pairs, and wherein each said primary coordinate pair has an input coordinate associated with the captured electronic image and a secondary coordinate associated with the output image.
18. The electronic camera of claim 17 , wherein four primary coordinate pairs are used to compute each secondary coordinate pair.
19. The electronic camera of claim 18 , wherein the secondary coordinate pairs are computed using distance weighted averages of the four nearest primary coordinate pairs.
20. An electronic camera comprising:
an electronic capture means for capturing images;
a processing means for causing the electronic image capture unit to capture an image of a scene and to form an output image by generating a background image showing a portion of the captured electronic image; and
wherein the processing means overlays a template over less than all of the background image, the template including a opening, generates a modified version of a section of the portion of the captured electronic image and overlays the opening with the modified version of the electronic image.