IMAGE DATA PROCESSING METHOD AND DEVICE THEREOF

摘要

An image data processing method and a device thereof are disclosed, and the method includes: receiving and executing a gamma correction process for first red, green and blue sub-pixel image data to obtain second red, green and blue sub-pixel image data; generating a first white sub-pixel image data, and third red, green and blue sub-pixel image data according to the second red, green and blue sub-pixel image data; and obtaining fourth red, green and blue sub-pixel image data and a second white sub-pixel image data through an inverse gamma conversion process.

主权项

1. An image data processing method, comprising steps of:
(A) receiving a first red sub-pixel image data, a first green sub-pixel image data, and a first blue sub-pixel image data; (B) executing a gamma correction process for the first red sub-pixel image data, the first green sub-pixel image data, and the first blue sub-pixel image data to obtain a second red sub-pixel image data, a second green sub-pixel image data, and a second blue sub-pixel image data; (C) generating a first white sub-pixel image data according to the second red sub-pixel image data, the second green sub-pixel image data, and the second blue sub-pixel image data; (D) generating a third red sub-pixel image data, a third green sub-pixel image data, and a third blue sub-pixel image data according to the second red sub-pixel image data, the second green sub-pixel image data, the second blue sub-pixel image data, and the first white sub-pixel image data; and (E) executing an inverse gamma conversion process for the third red sub-pixel image data, the third green sub-pixel image data, the third blue sub-pixel image data, and the first white sub-pixel image data to obtain a fourth red sub-pixel image data, a fourth green sub-pixel image data, a fourth blue sub-pixel image data, and a second white sub-pixel image data;
wherein the step (C) comprises steps of:(c1) executing a color space conversion for the second red sub-pixel image data, the second green sub-pixel image data and the second blue sub-pixel image data to obtain an angle data, a saturation data, and a brightness data, wherein the angle data, the saturation data, and the brightness data are related to the color space, a color space mode corresponding to the color space is a Munsell hue saturation brightness model; and(c2) calculating the first white sub-pixel image date according to the saturation data and the brightness data; wherein the step (c2) comprises a step of: (c21) analyzing the brightness and the saturation to obtain an analysis result, and calculating the first white sub-pixel image data according to the analysis result; wherein a value corresponding to the saturation=1−3/[(Ri+Gi+Bi)*min(Ri, Gi, Bi)], the min(Ri, Gi, Bi) is equal to a minimum value of the Ri, the Gi, and the Bi; wherein the value corresponding to the first white sub-pixel image data=the value corresponding to the brightness data*(1−the value corresponding to the saturation data); wherein the value corresponding to the second red sub-pixel image data is Ri, the value corresponding to the second green sub-pixel image data is Gi, and the value corresponding to the second blue sub-pixel image data is Bi.