公开(公告)号：US08452094B2

公开(公告)日：2013-05-28

申请号：US12647501

申请日：2009-12-27

Applicant: Seung-Hun Jeon

Inventor： Seung-Hun Jeon

IPC: G06K9/00

CPC classification number: G06T5/009

Abstract: A real-time image generator is disclosed. A real-time image generator may include a first block extracting only a luminance component having a saturation, hue, and value domain from red, green and blue values of an image. A second block outputs a log summation value and pixel count value with respect to a luminance component of an overall image by using the extracted luminance component and a natural log value. A third block calculates a luminance average value of the image by using the natural log summation value and the pixel count value outputted in the second block, the third block generating a tone mapping look up table including a tone mapping operator (Ld) for each luminance range to obtain a final output image using the calculated luminance average value. The third block outputs a tone mapped red, green and blue value by multiplying a corresponding tone mapping operator (Ld) of the tone mapping look up table by a red, green and blue value of the input image.

Abstract translation: 公开了一种实时图像发生器。 实时图像生成器可以包括仅从图像的红色，绿色和蓝色值提取具有饱和度，色调和值域的亮度分量的第一块。 第二块通过使用提取的亮度分量和自然对数值，输出相对于整体图像的亮度分量的对数求和值和像素计数值。 第三块通过使用在第二块中输出的自然对数求和值和像素计数值来计算图像的亮度平均值，第三块产生包括用于每个亮度的色调映射算子（Ld）的色调映射查找表 使用所计算的亮度平均值来获得最终输出图像。 第三块通过将色调映射查找表的相应色调映射算子（Ld）乘以输入图像的红色，绿色和蓝色值来输出色调映射的红色，绿色和蓝色值。

公开(公告)号：US20100166301A1

公开(公告)日：2010-07-01

申请号：US12647501

申请日：2009-12-27

Applicant: Seung-Hun Jeon

Inventor： Seung-Hun Jeon

IPC: G06T7/00

CPC classification number: G06T5/009

Abstract: A real-time image generator is disclosed. A real-time image generator may include a first block extracting only a luminance component having a saturation, hue, and value domain from red, green and blue values of an image. A second block outputs a log summation value and pixel count value with respect to a luminance component of an overall image by using the extracted luminance component and a natural log value. A third block calculates a luminance average value of the image by using the natural log summation value and the pixel count value outputted in the second block, the third block generating a tone mapping look up table including a tone mapping operator (Ld) for each luminance range to obtain a final output image using the calculated luminance average value. The third block outputs a tone mapped red, green and blue value by multiplying a corresponding tone mapping operator (Ld) of the tone mapping look up table by a red, green and blue value of the input image.

Abstract translation: 公开了一种实时图像发生器。 实时图像生成器可以包括仅从图像的红色，绿色和蓝色值提取具有饱和度，色调和值域的亮度分量的第一块。 第二块通过使用提取的亮度分量和自然对数值，输出相对于整体图像的亮度分量的对数求和值和像素计数值。 第三块通过使用在第二块中输出的自然对数求和值和像素计数值来计算图像的亮度平均值，第三块产生包括用于每个亮度的色调映射算子（Ld）的色调映射查找表 使用所计算的亮度平均值来获得最终输出图像。 第三块通过将色调映射查找表的相应色调映射算子（Ld）乘以输入图像的红色，绿色和蓝色值来输出色调映射的红色，绿色和蓝色值。

公开(公告)号：US20080155593A1

公开(公告)日：2008-06-26

申请号：US11754629

申请日：2007-05-29

Applicant: Mun-jo KIM ,  Sang-kwon Lee ,  Hyok-sung Choi ,  Seung-Hun Jeon

Inventor： Mun-jo KIM ,  Sang-kwon Lee ,  Hyok-sung Choi ,  Seung-Hun Jeon

IPC: G06F3/00 ,  H04L12/56

CPC classification number: H04N5/44 ,  H04N21/4345 ,  H04N21/4384 ,  H04N21/44004 ,  H04N21/44222 ,  H04N21/8455

Abstract: A channel-changing method is disclosed. The method includes receiving broadcast signals consisting of multiple packets, extracting frames using packet-identification information on the packets, and storing the extracted frames by channels, and outputting frames corresponding to the channel requested by a user among the stored frame.

Abstract translation: 公开了一种通道改变方法。 该方法包括接收由多个分组组成的广播信号，使用分组上的分组识别信息提取帧，并通过频道存储所提取的帧，以及输出与所存储的帧中的用户请求的信道相对应的帧。