User definable image reference points

• US 20030099411A1
• Filed: 10/24/2002
• Published: 05/29/2003
• Est. Priority Date: 10/24/2001
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Nik Multimedia Inc.
• Inventors: Kokemohr, Nils
• Granted Patent: US 6,728,421 B2
• Time in Patent Office: Days
• US Class Current: 382/309
• CPC Class Codes: G06F 2218/12 Classification; Matching
• CPC Class Codes: G06F 3/04845 for image manipulation, e.g. dragging, rotation, expansion or change of colour
• CPC Class Codes: G06F 3/04847 Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
• CPC Class Codes: G06T 11/00 2D [Two Dimensional] image generation
• CPC Class Codes: G06T 11/001 Texturing; Colouring; Generation of texture or colour inpainting G06T5/77
• CPC Class Codes: G06T 11/60 Editing figures and text; Combining figures or text
• CPC Class Codes: G06T 2200/24 involving graphical user interfaces [GUIs]
• CPC Class Codes: G06T 3/18 Image warping, e.g. rearranging pixels individually
• CPC Class Codes: G06T 5/00 Image enhancement or restoration
• CPC Class Codes: G06T 5/90 Dynamic range modification of images or parts thereof
• CPC Class Codes: H04N 1/622 with simulation on a subsidiary picture reproducer

Abstract

A method for image processing of a digital image comprising the steps of determining one or more sets of pixel characteristics; determining for each pixel characteristic set, an image editing function; providing a mixing function algorithm embodied on a computer-readable medium for modifying the digital image; and processing the digital image by applying (22) the mixing function algorithm based on the one or more pixel characteristic sets and determined image editing functions. Various mixing function algorithms are described. An application program interface embodied on a computer-readable medium comprising a first interface to receive the coordinates of the image reference points, and a second interface to receive the image editing function is also provided. The application program interface may represent the image reference points by a graphic tag (10).

Claims

1. A method for image processing of a digital image comprising the steps of:

determining one or more sets of pixel characteristics;

determining for each pixel characteristic set, an image editing function;

providing a mixing function algorithm embodied on a computer-readable medium for modifying the digital image; and

processing the digital image by applying the mixing function algorithm based on the one or more pixel characteristic sets and determined image editing functions.

2. The method of claim 1, wherein the mixing function algorithm comprises a difference function.

3. The method of claim 2, wherein the difference function algorithm calculates a value based on the difference of between pixel characteristics and one of the one or more determined pixel characteristic sets.

4. The method of claim 1, further comprising the step of determining for each pixel characteristic set, a set of weighting values, and the processing step further comprises applying the mixing function algorithm based on the determined weighting value set.

5. The method of claim 1, wherein the mixing function algorithm includes a controlling function for normalizing the calculations.

6. The method of claim 1, wherein a first pixel characteristic set is determined, and at least one characteristic in the first pixel characteristic set is location dependent, and at least one characteristic in the first pixel characteristic set is either color dependent, or structure dependent, or both.

7. The method of claim 1, wherein a first pixel characteristic set is determined, and at least two different characteristics in the first pixel characteristic set are from the group consisting of location dependent, color dependent, and structure dependent.

8. A method for processing of a digital image comprising the steps of:

receiving the coordinates of one or more than one image reference point defined by a user within the digital image;

receiving one or more than one image editing function assigned by the user and associated with the coordinates of the one or more than one defined image reference point;

providing a mixing function algorithm embodied on a computer-readable medium for modifying the digital image; and

processing the digital image by applying the mixing function algorithm based on the one or more than one assigned image editing function and the coordinates of the one or more than one defined image reference point.

9. The method of claim 8, further comprising displaying a graphical icon at the coordinates of a defined image reference point.

10. The method of claim 8, the digital image comprising pixels, wherein the mixing function algorithm calculates a geometric distance between each pixel of the digital image to the coordinates of the one or more than one defined image reference point.

11. The method of claim 10, the mixing function algorithm operating as a function of the calculated geometric distance from each pixel of the digital image to the coordinates of the one or more than one defined image reference point.

12. The method of claim 8, the digital image comprising pixels having image characteristics, further comprising receiving one or more assigned image characteristics associated with the coordinates of one or more defined image reference point, and wherein the mixing function algorithm calculates a characteristic difference between the image characteristics of a pixel of the digital image and the one or more assigned image characteristics.

13. The method of claim 8, further comprising receiving one or more weighting values, and the processing step further comprising applying the mixing function algorithm based on weighting values.

14. The method of claim 8, further comprising receiving one or more regions of interest associated with the coordinates of one or more defined image reference point.

15. The method of claim 8, the digital image comprising pixels having image characteristics, wherein the mixing function algorithm calculates a characteristic difference between the image characteristics of a pixel and the image characteristics of one or more pixels neighboring the coordinates of one or more defined image reference point.

16. The method of claim 8, further comprising the step of providing an application program interface comprising a first interface to receive the coordinates of the one or more defined image reference points, and a second interface to receive the one or more assigned image editing functions.

17. The method of claim 8, wherein the mixing function algorithm is selected from a group consisting of a Pythagoras distance approach, a color curves approach, a segmentation approach, a classification approach, an expanding areas approach, and an offset vector approach.

18. The method of claim 17, wherein the segmentation approach comprises multiple segmentation.

19. The method of claim 17, the digital image comprising pixels having attributes, wherein the classification approach adjusts for similarity of pixel attributes.

20. A method for processing of a digital image, the digital image comprising pixels having image characteristics comprising the steps:

defining the location of image reference points within the digital image;

determining image editing functions; and

processing the digital image by applying the determined image editing functions based upon either the location of the defined image reference points, or the image characteristics of the pixels at the location of the defined image reference points, or both.

21. A method for image processing of a digital image comprising the steps of:

providing one or more than one image processing filter;

setting the coordinates of one or more than one image reference point within the digital image;

providing a mixing function algorithm embodied on a computer-readable medium for modifying the digital image; and

processing the digital image by applying the mixing function algorithm based on the one or more than one image processing filter and the coordinates of the one or more than one set image reference point.

22. The method of claim 21, wherein the one or more than one image processing filter is a noise reduction filter.

23. The method of claim 21, wherein the one or more than one image processing filter is a sharpening filter.

24. The method of claim 21, wherein the one or more than one image processing filter is a color change filter.

25. An application program interface embodied on a computer-readable medium for execution on a computer for image processing of a digital image, the digital image comprising pixels having image characteristics, comprising:

a first interface to receive the coordinates of each of a plurality of image reference points defined by a user within the digital image, and

a second interface to receive an image editing function assigned by the user and associated with either the coordinates of each of the plurality of defined image reference points, or the image characteristics of one or more pixels neighboring the coordinates of each of the plurality of defined image reference points.

26. The program interface of claim 25 wherein the second interface is to receive an image editing function assigned by the user and associated with both the coordinates of each of the plurality of defined image reference points, and the image characteristics of one or more pixels neighboring the coordinates of each of the plurality of defined image reference points.

28. The program interface of claim 25, further comprising a third interface that displays a graphical icon at the coordinates of one or more than one of the plurality of defined image reference points.

29. The program interface of claim 28, wherein the third interface permits repositioning of the graphical icon.

30. The program interface of claim 25, further comprising a fourth interface that displays the assigned image editing function.

31. The program interface of claim 25, wherein the second interface is further to receive one or more than one parameter representing a weighting value.

27. An application program interface embodied on a computer-readable medium for execution on a computer for image processing of a digital image, the digital image comprising pixels having image characteristics, comprising:

a first interface to receive the coordinates of an image reference point defined by a user within the digital image, and

a second interface to receive an image editing function assigned by the user and associated with both the coordinates of the defined image reference point, and the image characteristics of one or more pixels neighboring the coordinates of the defined image reference point.