Image regulation apparatus

Abstract

The invention provides an image adjusting device for adjusting the contrast of a video image. The image adjusting device comprises a converting module, a processing module, an outputting module and a display module. The converting module converts the screen image more than the value of input images. Processing module coupled to the conversion module access to the gain in accordance with a curve to adjust the value of a number of input images to generate more than the corresponding value of the output image. The outputting module coupled to the processing module access to images based on the number of output values, resulting in an output image. Access module coupled to the output module to display the output image. The invention described in the imaging device to adjust the output generated by the video images with better contrast, may significantly enhance the image quality.

Description

technical field [0001] The present invention relates to an image adjustment device, in particular to an image adjustment device for adjusting image contrast. Background technique [0002] The current display technology can be divided into two types that use the backlight module to provide the light source or self-illumination. It is known that the brightness of the liquid crystal display (LCD) is generated by the backlight module. By controlling the twist of the liquid crystal, the transmission of the backlight can be changed. rate to determine the brightness of the image. The field emission flat panel display (fieldcmission display, FED) adopts the method of self-luminescence, and emits light by irradiating high-energy electrons to the image elements (pixels) of a screen, and then emits electrons from the excited fluorescent substance. can be converted into visible light. Field emission flat panel displays (FEDs) have become one of the increasingly popular displays becaus...

AI Technical Summary

Problems solved by technology

Alternatively, the input image is adjusted using a transfer function characteristic curve with the same gain value, for example, a transfer function characteristic curve with a gain value of 0.8 or 1.2, however, the image contrast adjusted in this way is due to the gain of each image value The size is the same, when adjusting the high-brightness image value of the input image, the low-brightness image is also adjusted correspondingly, and the adjusted gain value is the same, so the contrast of the output image will not be obvious enough, making the adjustment of image contrast The effect is greatly reduced, and the quality of the output image is relatively reduced

[0005] The above-mentioned problems are less obvious in the past displays that use the backlight module as the light source

However, if a self-illuminating display such as a field emission flat panel display is used, it will be very easy to be detected by the user.

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