Digital image processing using face detection information
View Patent ↗A method of processing a digital image using face detection within the image achieves one or more desired image processing parameters. A group of pixels is identified that correspond to an image of a face within the digital image. Default values are determined of one or more parameters of at least some portion of the digital image. Values are adjusted of the one or more parameters within the digitally-detected image based upon an analysis of the digital image including the image of the face and the default values.
1. A method of processing a digital image using face detection within said image to achieve one or more desired image processing parameters, comprising using a portable microprocessor-based image acquisition device in:
(a) acquiring a temporally-sequential collection of two or more images of substantially a same scene;
(b) identifying and tracking at least one group of pixels that corresponds to an image of a same face region across said collection of images;
(c) determining default values of one or more parameters of at least some common portion of said images; and
(d) modifying values of the one or more parameters within a main acquired image based upon an analysis of said face region and the default parameter values determined based on the collection of images, and
(e) rendering, transmitting, transferring, storing, uploading, caching, or displaying said modified image or a further processed version, or combinations thereof.
2. The method of claim 1 , wherein said collection of images comprise lower resolution images than said main acquired image.
3. The method of claim 1 , wherein said collection of images and said main acquired image each comprise said same face region.
4. The method of claim 1 , further comprising acquiring said main acquired image based on user input.
5. The method of claim 4 , wherein said main acquired image comprises a higher resolution than said collection of images.
6. The method of claim 1 , wherein said modifying comprises modifying values of the one or more parameters within a most recently acquired image of the collection based upon an analysis of said face region and the default parameter values of one or more preceding images of the collection.
7. The method of claim 1 , wherein said collection of low resolution images comprises one or more thumbnail views or a contact sheet or both.
8. The method of claim 7 , further comprising displaying in preview said one or more thumbnail views or said contact sheet or said collection of low resolution images including said face, or combinations thereof.
9. One or more processor readable storage devices having processor readable code embodied thereon, said processor readable code for programming one or more processors to perform a method of processing a digital image using face detection within said image to achieve one or more desired image processing parameters, the method comprising:
(a) acquiring a temporally-sequential collection of two or more images of substantially a same scene;
(b) identifying and tracking at least one group of pixels that corresponds to an image of a same face region across said collection of images;
(c) determining default values of one or more parameters of at least some common portion of said images; and
(d) modifying values of the one or more parameters within a main acquired image based upon an analysis of said face region and the default parameter values determined based on the collection of images, and
(e) rendering, transmitting, transferring, storing, uploading, caching, or displaying said modified image or a further processed version, or combinations thereof.
10. The one or more storage devices of claim 9 , wherein said collection of images comprise lower resolution images than said main acquired image.
11. The one or more storage devices of claim 9 , wherein said collection of images and said main acquired image each comprise said same face region.
12. The one or more storage devices of claim 9 , wherein the method further comprises acquiring said main acquired image based on user input.
13. The one or more storage devices of claim 12 , wherein said main acquired image comprises a higher resolution than said collection of images.
14. The one or more storage devices of claim 9 , wherein said modifying comprises modifying values of the one or more parameters within a most recently acquired image of the collection based upon an analysis of said face region and the default parameter values of one or more preceding images of the collection.
15. The one or more storage devices of claim 9 , wherein said collection of low resolution images comprises one or more thumbnail views or a contact sheet or both.
16. The one or more storage devices of claim 15 , further comprising displaying in preview said one or more thumbnail views or said contact sheet or said collection of low resolution images including said face, or combinations thereof.
17. A portable digital camera comprising a lens, an image sensor, a processor, and memory having processor-readable code embedded therein for programming the processor to perform a method of processing a digital image using face detection within said image to achieve one or more desired image processing parameters, wherein the method comprises:
(a) acquiring a temporally-sequential collection of two or more images of substantially a same scene;
(b) identifying and tracking at least one group of pixels that corresponds to an image of a same face region across said collection of images;
(c) determining default values of one or more parameters of at least some common portion of said images; and
(d) modifying values of the one or more parameters within a main acquired image based upon an analysis of said face region and the default parameter values determined based on the collection of images, and
(e) rendering, transmitting, transferring, storing, uploading, caching, or displaying said modified image or a further processed version, or combinations thereof.
18. The portable digital camera of claim 17 , wherein said collection of images comprise lower resolution images than said main acquired image.
19. The portable digital camera of claim 17 , wherein said collection of images and said main acquired image each comprise said same face region.
20. The portable digital camera of claim 17 , wherein the method further comprises acquiring said main acquired image based on user input.
21. The portable digital camera of claim 20 , wherein said main acquired image comprises a higher resolution than said collection of images.
22. The portable digital camera of claim 17 , wherein said modifying comprises modifying values of the one or more parameters within a most recently acquired image of the collection based upon an analysis of said face region and the default parameter values of one or more preceding images of the collection.
23. The portable digital camera of claim 17 , wherein said collection of low resolution images comprises one or more thumbnail views or a contact sheet or both.
24. The portable digital camera of claim 23 , wherein the method further comprises displaying in preview said one or more thumbnail views or said contact sheet or said collection of low resolution images including said face, or combinations thereof.