Method and Related Apparatus for Modifying Color Saturation of a Display Device

• US 20080144963A1
• Filed: 12/05/2007
• Published: 06/19/2008
• Est. Priority Date: 12/14/2006
• Status: Active Grant

• Current Assignee: AU Optronics Corporation
• Original Assignee: AU Optronics Corporation
• Inventors: Lin, Shih-Yao
• Granted Patent: US 8,406,555 B2
• Time in Patent Office: Days
• US Class Current: 382/274
• CPC Class Codes: H04N 9/68 for controlling the amplitude of colour signals, e.g. automatic chroma control circuits H04N9/71, H04N9/73 take precedence; camera processing pipelines for controlling the colour saturation of colour signals H04N23/86
• CPC Class Codes: H04N 9/77 Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase circuits for matrixing H04N9/67

Abstract

A method of modifying color saturation for a display device includes receiving an image data including a brightness data and a saturation data of a frame, generating a brightness statistic result according to the brightness data, comparing the brightness statistic result with a predetermined value for generating a comparison result, and adjusting the saturation data of the frame according to the comparison result.

Claims

1. A method for modifying color saturation of a display device, the method comprising:

receiving an image data comprising a brightness data and a saturation data of a frame;

generating a brightness statistic result according to the brightness data;

comparing the brightness statistic result with a predetermined value for generating a comparison result; and

adjusting the saturation data of the frame according to the comparison result.

2. The method of claim 1, wherein generating the brightness statistic result comprises:

obtaining a brightness distribution result of the frame according to the brightness data;

generating a brightness distribution curve according to the brightness distribution result; and

performing a first calculation for the brightness distribution curve for generating the brightness statistic result.

3. The method of claim 2, wherein the brightness distribution curve is generated through accumulating the brightness distribution result.

4. The method of claim 2, wherein the first calculation is an integration.

5. The method of claim 1, wherein the predetermined value is an integration result of a predetermined brightness distribution curve.

6. The method of claim 1, further comprising increasing the saturation data of the frame when the brightness statistic result is greater than the predetermined value.

7. The method of claim 1, further comprising:

decreasing the saturation data of the frame when the brightness statistic result is less than the predetermined value.

8. The method of claim 1, further comprising:

keeping the saturation data of the frame the same when the brightness statistic result equals the predetermined value.

9. An image data processing device comprising:

a receiving unit, for receiving an image data of a frame, wherein the image data comprises a brightness data and a saturation data;

a statistic unit coupled to the receiving unit, for generating a brightness statistic result according to the brightness data;

a comparing unit coupled to the statistic unit, for comparing the brightness statistic result with a predetermined value, for generating a comparing result; and

a modifying unit coupled to the comparing unit, for modifying the saturation data of the frame according to the comparing result.

10. The image processing device of claim 9, wherein the statistic unit comprises:

a data processing unit, for obtaining a brightness distribution result of the frame according to the brightness data;

a data transforming unit coupled to the data processing unit, for generating a brightness distribution curve according to the brightness distribution result; and

an operation unit coupled to the data transforming unit, for performing a first operation on the brightness distribution curve, for generating the brightness statistic result.

11. The image processing device of claim 10, wherein the brightness distribution curve is generated through accumulating the brightness distribution result.

12. The image processing device of claim 10, wherein the first operation is an integral operation.

13. The image processing device of claim 9, wherein the predetermined value is an integrated result of a predefined brightness distribution curve.

14. The image processing device of claim 9, wherein the modifying unit increases the saturation data of the frame when the brightness statistic result is greater than the predetermined value.

15. The image processing device of claim 9, wherein the modify unit decreases the saturation data of the frame when the brightness statistic result is less than the predetermined value.