Flexible digital image processing via an image processing chain with modular image processors

• US 6,157,394 A
• Filed: 08/29/1996
• Issued: 12/05/2000
• Est. Priority Date: 08/29/1996
• Status: Expired due to Term

• Current Assignee: Apple Inc.
• Original Assignee: Apple Computer Incorporated (Apple Inc.)
• Inventors: Anderson, Eric C., Chin, Gary
• Primary Examiner(s): Chauhan, Ulka J.
• Application Number:
  US08/705,588
• Time in Patent Office: 1,559 Days
• Field of Search: 348/207, 348/211, 348/213, 348/222, 348/223, 348/229, 348/231-234, 348/239, 348/241, 348/246, 348/247, 348/251, 348/252, 348/254, 345/501-506, 382/302, 382/303
• US Class Current: 345/506
• CPC Class Codes: G06T 1/20 Processor architectures; Processor configuration, e.g. pipelining
• CPC Class Codes: H04N 1/40 Picture signal circuits H04N1/387 takes precedence

Abstract

A method for altering a linked series of image processors capable of manipulation digital image data includes providing a digital image capture device with an image processing chain, and modifying the image processing chain to form a new image processing chain. The modifying further includes deleting an image processor from the image processing chain. Alternatively, the modifying further includes altering the image processing chain with at least one externally provided image processor, inserting an image processor into the image processing chain, or replacing an image processor in the image processing chain.

In a system aspect, the system includes a digital image capture device, the digital image capture device capable of processing digital image data through two or more image processors. The system further includes a central processing unit within the digital image capture device and capable of linking the two or more image processors to form an image processing chain. The central processing unit further facilitates modification of the image processing chain to form a new image processing chain.

Claims

1. A method for altering a linked series of image processors capable of manipulating digital image data, the method comprising:

providing a digital image capture device with an image processing chain;

coordinating the image processing chain with an image iprocessing backplane; and

modifying the image processing chain to form a new image processing chain through a plurality of functions of the image processing backplane, including modifying through a function for deleting an image processor from the image processing chain.

2. The method of claim 1 wherein the step of modifying further comprises altering the image processing chain with at least one externally provided image processor.

3. The method of claim 2 wherein the step of modifying further comprises inserting an image processor into the image processing chain.

4. The method of claim 2 wherein the step of modifying further comprises replacing an image processor in the image processing chain.

5. The method of claim 2 wherein the at least one externally provided image processor further comprises a linearization image processor.

6. The method of claim 2 wherein the at least one externally provided image processor further comprises a bad pixel replacement image processor.

7. The method of claim 2 wherein the at least one externally provided image processor further comprises a white balance image processor.

8. The method of claim 2 wherein the at least one externally provided image processor further comprises an image reconstruction image processor.

9. The method of claim 2 wherein the at least one externally provided image processor further comprises a color correction image processor.

10. The method of claim 2 wherein the at least one externally provided image processor further comprises a color space conversion image processor.

11. The method of claim 2 wherein the at least one externally provided image processor further comprises a sharpening image processor.

12. The method of claim 2 wherein the at least one externally provided image processor further comprises a compression image processor.

13. A system for manipulating digital image data, the system comprising:

a digital image capture device, the digital image capture device capable of processing digital image data through two or more image processors; and

a central processing unit within the digital image capture device and capable of linking the two or more image processors to form an image processing chain, and coordinating the image processing chain with an image processing backplane, wherein the central processing unit facilitates modification of the image processing chain to form a new image processing chain, through a plurality of functions of the image processing backplane, including a function for deletion of an image processor from the image processing chain.

14. The system of claim 13 wherein the central processing unit facilitates alteration of the image processing chain with at least one externally provided image processor.

15. The system of claim 13 wherein the central processing unit facilitates insertion of an image processor into the image processing chain.

16. The system of claim 13 wherein the central processing unit facilitates replacement of an image processor in the image processing chain.

17. A computer readable medium containing program instructions for:

providing a digital image capture device with an image processing chain;

coordinating the image processing chain with an image processing backplane; and

modifying the image processing chain to form a new image processing chain through a plurality of functions of the image processing backplane, including modifying through a function for deleting an image processor from the image processing chain.