摘要:
A de-interlacing device and method therefor for de-interlacing an image. The image includes at least one field, which includes a plurality of pixels arranged in an M*N matrix. The de-interlacing device is for determining the brightness value of a current pixel and includes the following elements. A motion detector is for determining whether or not the current pixel is motional. An edge detector detects an edge type of the current pixel if the current pixel is motional. An edge-based de-interlacer includes a reference pixel determiner for determining a plurality of edge reference pixels having the strongest correlation with the current pixel according to the edge type, and a brightness value determiner for deriving the brightness value of the current pixel according to the edge reference pixels.
摘要:
A de-interlacing device having a pattern recognizing unit and a method therefor for receiving an interlaced image and outputting a non-interlaced image. The de-interlacing device includes a first de-interlacing unit, a second de-interlacing unit and a pattern recognizing unit. The pattern recognizing unit receives the interlaced image, recognizes whether or not the interlaced image has an obviously horizontal pattern, outputting the interlaced image to the first de-interlacing unit if yes, and outputting the interlaced image to the second de-interlacing unit if not. The first de-interlacing unit and the second de-interlacing unit use different de-interlacing methods. The first or second de-interlacing unit receives the interlaced image outputted from the pattern recognizing unit and outputs the non-interlaced image accordingly.
摘要:
A method of reducing frame buffer size for driving a pixel includes converting a first color signal at a first color space of the pixel into a second color signal at a second color space, storing the second color signal into a memory, reading the second color signal from the memory and converting the second color signal into a first color signal, and driving the pixel according to the first color signal transferred from the second color signal and a target gray level.
摘要:
A de-interlacing device having a pattern recognizing unit and a method therefor for receiving an interlaced image and outputting a non-interlaced image. The de-interlacing device includes a first de-interlacing unit, a second de-interlacing unit and a pattern recognizing unit. The pattern recognizing unit receives the interlaced image, recognizes whether or not the interlaced image has an obviously horizontal pattern, outputting the interlaced image to the first de-interlacing unit if yes, and outputting the interlaced image to the second de-interlacing unit if not. The first de-interlacing unit and the second de-interlacing unit use different de-interlacing methods. The first or second de-interlacing unit receives the interlaced image outputted from the pattern recognizing unit and outputs the non-interlaced image accordingly.
摘要:
A de-interlacing device and method therefor for de-interlacing an image. The image includes at least one field, which includes a plurality of pixels arranged in an M*N matrix. The de-interlacing device is for determining the brightness value of a current pixel and includes the following elements. A motion detector is for determining whether or not the current pixel is motional. An edge detector detects an edge type of the current pixel if the current pixel is motional. An edge-based de-interlacer includes a reference pixel determiner for determining a plurality of edge reference pixels having the strongest correlation with the current pixel according to the edge type, and a brightness value determiner for deriving the brightness value of the current pixel according to the edge reference pixels.
摘要:
Successive video signals of a first frame and a second frame are received. A signal difference between the video signals is determined and filtered to obtain a luminance difference. A signal sum of the video signals is determined and filtered to obtain a luminance sum. The luminance sum is subtracted from the signal sum to obtain a chrominance difference.
摘要:
A method for luminance transition improvement includes the following steps: inputting an image comprising a plurality of pixels comprising a first pixel; generating an extreme gray level according to the plurality of pixels; generating a first gray level difference according to the gray level of the first pixel and the extreme gray level; generating a first gray level adjustment value according to the first gray level difference, a first weighted value, a second weighted value, and a first order differential value of the gray level of the first pixel relative to a spatial coordinate; and generating an adjusted gray level of the first pixel according to the first gray level adjustment value and the gray level of the first pixel.
摘要:
A cross color suppressing apparatus used for suppressing the cross color of a frame is provided. The frame has several pixels, and the image data of each pixel include a luminance and a chrominance. The apparatus includes a diagonal edge detector, a cross color detector and a chrominance suppressing unit. The diagonal edge detector is used for determining whether target pixel is on a diagonal edge according to the luminance of the target pixel and that of its neighboring pixels. The cross color detector is used for determining whether the chrominance of the target pixel is substantially different from that of its neighboring pixels. If both the determination results of the diagonal edge detector and the cross color detector are true, the chrominance suppressing unit suppresses the chrominance of the target pixel and its neighboring pixels.
摘要:
An overdrive device for driving a display panel includes a comparison circuit, a multiplexer, and an overdrive module. The comparison circuit receives pixel values of display cells of the display panel in a previous frame carried on a first decompressed data signal and in a current frame carried on a second decompressed data signal, and determines whether the brightness/color of each target display cell is static to assert or de-assert a selection signal. The multiplexer outputs an output signal to output at least a reference pixel value for the overdrive module according to the selection signal. The overdrive module receives the reference pixel value, and overdrives the target display cell according to an overdrive value corresponding to a combination of the received current and reference pixel values stored in a look-up table of the overdrive module.
摘要:
Successive video signals of a first frame and a second frame are received. A signal difference between the video signals is determined and filtered to obtain a luminance difference. A signal sum of the video signals is determined and filtered to obtain a luminance sum. The luminance sum is subtracted from the signal sum to obtain a chrominance difference.