PROVIDING VISUAL EFFECTS FOR IMAGES

• US 20140341425A1
• Filed: 05/08/2014
• Published: 11/20/2014
• Est. Priority Date: 05/14/2013
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: BABACAN, Sevket Derin, KRISHNASWAMY, Aravind
• Granted Patent: US 9,881,202 B2
• Time in Patent Office: Days
• US Class Current: 382/103
• CPC Class Codes: G06T 11/60 Editing figures and text; Combining figures or text
• CPC Class Codes: G06T 2207/30201 Face
• CPC Class Codes: G06T 5/94 based on local image properties, e.g. for local contrast enhancement
• CPC Class Codes: G06V 40/161 Detection; Localisation; Normalisation

Abstract

Implementations relate to providing visual effects for images. In some implementations, a method includes detecting one or more objects in an image. The method identifies one or more important objects of the objects, where the important objects are determined to have an importance measurement satisfying a predetermined threshold indicating their importance to a viewer of the image. The method determines an application of a visual image effect to the image based on the important objects.

Claims

1. A computer-implemented method comprising:

detecting one or more objects in an image;

identifying one or more important objects of the one or more objects, wherein the important objects are determined to have an importance measurement satisfying a predetermined threshold indicating their importance to a viewer of the image; and

determining an application of a visual image effect to the image based on the one or more important objects.

2. The method of claim 1 wherein the objects are faces and the important objects are important faces.

3. The method of claim 1 further comprising, in response to identifying a plurality of important objects in the image, determining a distance between outermost important objects,

wherein determining an application of the visual image effect includes determining whether to apply the visual image effect to the image based on the distance between the outermost important objects.

4. The method of claim 1 wherein determining an application of the visual image effect includes determining a center of the visual image effect to be applied, wherein the center is based on the position of the one or more important objects in the image.

5. The method of claim 4 wherein the center of the visual image effect is a mean center of all the important objects.

6. The method of claim 4 further comprising applying the visual image effect to the image centered on the determined center.

7. The method of claim 4 wherein the visual image effect is a border effect provided near the borders of the image and centered on the determined center of the border effect.

8. The method of claim 7 further comprising determining a radius around the center in which the border effect is not to be applied.

9. The method of claim 7 wherein the visual image effect is a vignette.

10. The method of claim 7 further comprising determining a strength of the border effect and a radius of the border effect to be applied to enhance the quality of the image.

11. The method of claim 1 wherein the importance measurement includes a determination of whether an object has a size greater than a predetermined size, where the predetermined size is based on a size of the image.

12. The method of claim 1 wherein the importance measurement includes a determination of whether an object has a sharpness over a predetermined threshold sharpness.

13. The method of claim 1 further comprising determining a strength of darkening of the visual effect.

14. The method of claim 13 wherein the strength of the darkening is based on at least one of:

a location of one of more of the important objects in the image,

a combined size of the important objects in the image, and

the number of the important objects in the image.

15. A computer implemented method comprising:

detecting one or more objects in an image;

identifying one or more important objects of the one or more objects, wherein the important objects are determined to have an importance measurement satisfying a predetermined threshold indicating their importance to a viewer of the image;

determining a center of a visual border effect to be applied to the image, wherein the center is based on the position of the one or more important objects in the image, and wherein the border effect is to be applied in greater strength closer to the borders of the image than to the determined center of the border effect; and

applying the visual border effect to the image centered on the determined center.

16. The method of claim 15 wherein the center of the visual image effect is a mean center of all the important objects.

17. The method of claim 15, wherein in response to identifying a plurality of important objects, further comprising:

determining a distance between outermost important objects; and

determining whether to apply the visual border effect to the image based on the distance between the outermost important objects.

18. A system comprising:

a storage device; and

at least one processor accessing the storage device and operative to perform operations comprising;

detecting one or more objects in an image;

identifying one or more important objects of the one or more objects, wherein the important objects are determined to have an importance measurement satisfying a predetermined threshold indicating their importance to a viewer of the image; and

determining an application of a visual image effect to the image based on the one or more important objects.

19. The system of claim 18 further comprising, in response to identifying a plurality of important objects in the image, an operation including determining a distance between outermost important objects,

wherein determining an application of the visual image effect includes determining whether to apply the visual image effect to the image based on the distance between the outermost important objects.

20. The system of claim 18 wherein determining an application of the visual image effect includes determining a center of the visual image effect to be applied, wherein the center is based on the position of the one or more important objects in the image.