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提高等離子顯示器圖象清晰度電視的方法

文檔序號(hào):2572214閱讀:604來(lái)源:國(guó)知局
專利名稱:提高等離子顯示器圖象清晰度電視的方法
技術(shù)領(lǐng)域
本發(fā)明涉及從視頻處理的角度提出的一種提高彩色等離子顯示器圖像清晰度的方法,屬于等離子顯示器圖像顯示技術(shù)領(lǐng)域。
背景技術(shù)
利用等離子顯示屏(Plasma Display Panel)顯示圖像的方法,在1920年就在美國(guó)誕生了,但CRT的普遍使用,滯后了其研制的開(kāi)發(fā)進(jìn)程,1960年以后,這種研究逐漸從美國(guó)轉(zhuǎn)移到日本,交流型PDP從IRINOIS大學(xué)轉(zhuǎn)移到富士通直流型PDP從BAROUSU轉(zhuǎn)移到NHK。從工作方式上分為交流(AC)PDP和直流(DC)PDP,ACPDP又分為對(duì)象放電型PDP和表面放電型PDP,我們今天所指的PDP,就是指交流表面放電型的PDP。
原來(lái)AC型PDP被認(rèn)為實(shí)現(xiàn)HDTV*256等級(jí)灰度的高等級(jí)目標(biāo),規(guī)格是困難的,隨著分離顯示期間和選址期間的高速灰度驅(qū)動(dòng)法(地址/顯示分離型子幀法被發(fā)明。)高等級(jí)灰度顯示成為可能。在PDP中,因采用子幀法對(duì)于移動(dòng)畫(huà)面,會(huì)產(chǎn)生畫(huà)質(zhì)下降的偽輪廓問(wèn)題,這就象人的臉一樣,在進(jìn)行流暢灰度變化部分產(chǎn)生明顯的偽輪廓現(xiàn)象。
PDP作為嚴(yán)格的數(shù)字化視頻處理系統(tǒng),包括下述步驟.NTSC/PAL數(shù)字解碼并消除或者說(shuō)是減少噪聲。(decoding with artifactsuppression).時(shí)基校正和消除抖動(dòng)(Timebase Correction and jitter removal)
.基于運(yùn)動(dòng)檢測(cè)的隔行逐行變換(Motion adaptive deinterlacing).運(yùn)動(dòng)自適應(yīng)的噪聲消除(Motion adaptive noise reduction).非線性帶寬擴(kuò)展.比例變換.色空間轉(zhuǎn)換.色彩控制和γ校正.幀速率轉(zhuǎn)換解碼的過(guò)程是對(duì)復(fù)合同步信號(hào)進(jìn)行亮色分離,其難點(diǎn)在于信號(hào)源編碼(NTSC編碼或者PAL編制)時(shí)所采用的亮度和色度在頻率域上的交織處理過(guò)程中,沒(méi)有進(jìn)行適當(dāng)?shù)念A(yù)濾波以消除疊加,以至于很難阻止亮度通道和色度通道的交叉耦合,這種現(xiàn)象在大多數(shù)電視機(jī)中可以看到亮色串繞。比較廉價(jià)的老式視頻解碼器中,采用的是窄帶解碼器,對(duì)亮度信號(hào)在彩色負(fù)載波中心頻率附近進(jìn)行濾波,這樣圖像中損失了許多細(xì)節(jié),影響清晰度。
現(xiàn)代典型的視頻解碼器中,使用無(wú)濾波的多行梳狀濾波器,對(duì)連續(xù)的行進(jìn)行平均以獲得亮度信號(hào);這種方法的問(wèn)題在于多采用的平均行中要求色度不變;但實(shí)際上是不可能的,這將導(dǎo)致在彩色的邊緣產(chǎn)生噪聲(artifacts at color boundary)。
國(guó)際上也有一些學(xué)者提出使用3維解碼,使用2-3個(gè)連續(xù)的場(chǎng)來(lái)分離亮度和色度,其對(duì)于靜止圖像可取得較好的效果,但對(duì)于運(yùn)動(dòng)圖像的效果較差。
PDP中顯示的是逐行掃描的信號(hào),而標(biāo)準(zhǔn)的視頻信號(hào)時(shí)垂直方向2∶1的隔行掃描信號(hào)。因此,標(biāo)準(zhǔn)的視頻信號(hào)在PDP中顯示時(shí),要進(jìn)行隔行逐行掃描變換(De-interlace),這就要求在當(dāng)前場(chǎng)中產(chǎn)生丟失的另一半信息。De-interlace的算法很多,如行插值法、幀內(nèi)插值法、空間插值法、加權(quán)運(yùn)動(dòng)插值法、中值濾波插值法、鄰域檢測(cè)插值法等,但是易于工業(yè)實(shí)現(xiàn)的方法歸結(jié)起來(lái)有二類其一場(chǎng)內(nèi)空間插值插值數(shù)據(jù)來(lái)自于場(chǎng)內(nèi)圖像(Spatial interpolation),這種方法的缺點(diǎn)時(shí)犧牲一半的垂直分辨率。
其二場(chǎng)間插值插值數(shù)據(jù)來(lái)自于連續(xù)的圖像,這種方法的優(yōu)點(diǎn)時(shí)可獲得較好的垂直分辨率,缺點(diǎn)是對(duì)圖像運(yùn)動(dòng)物體的邊像產(chǎn)生影響,而使圖像模糊。

發(fā)明內(nèi)容
本發(fā)明所要解決的技術(shù)問(wèn)題是提供一種提高等離子顯示器顯示圖像的清晰度和透亮度的方法。
本發(fā)明是這樣來(lái)實(shí)現(xiàn)的在交流表面放電型PDP系統(tǒng)中,在測(cè)量、繪出PDP顯示屏模塊的紅色通道電光響應(yīng)曲線,綠色通道電光響應(yīng)曲線和藍(lán)色通道電光響應(yīng)曲線的基礎(chǔ)上,確定各色彩分量的校正曲線,通過(guò)在0-256之間取值,計(jì)算出各色彩分量的矯正表,以查表的方式加入到視頻處理過(guò)程后端的校正查表處理電路中。
本方法能更好地發(fā)揮等離子顯示屏(PDP)的顯示效果,更多地表現(xiàn)出視頻圖像的灰度等級(jí)和色彩透亮度。


附圖為PDP視頻處理實(shí)施方框圖。
具體實(shí)施例方式參照說(shuō)明書(shū)附圖,按以下流程實(shí)施1、測(cè)量PDP顯示屏的紅色通道的亮度響應(yīng)曲線O_Gr(x,v)設(shè)置PDP顯示屏綠色通道G
輸入值為零,藍(lán)色通道B
輸入值為零。讓紅色通道R
輸入值在0,1,2 .255變化,用亮度計(jì)測(cè)量PDP顯示屏對(duì)應(yīng)的輸出亮度值,并繪制出亮度的響應(yīng)曲線O_Gr(x,v)。2、測(cè)量PDP顯示屏的綠色通道的亮度響應(yīng)曲線O_Gg(x,v)設(shè)置PDP顯示屏紅色通道R
,藍(lán)色通道B
輸入值為零。讓綠色通道G
輸入值在0,1,2 .255變化,用亮度計(jì)測(cè)量PDP顯示屏對(duì)應(yīng)的輸出亮度值,并繪制出亮度的響應(yīng)曲線O_Gg(x,v)。3、測(cè)量PDP顯示屏的藍(lán)色通道的亮度響應(yīng)曲線O_Gb(x,v)設(shè)置PDP顯示屏紅色通道R
,綠色通道G
輸入值為零。讓藍(lán)色通道B
輸入值在0,1,2 .255變化,用亮度計(jì)測(cè)量PDP顯示屏對(duì)應(yīng)的輸出亮度值,并繪制出亮度的響應(yīng)曲線O_Gb(x,v)。4、確定各色彩分量的校正曲線Cr(x,v),Cg(x,v),Cb(x,v)Cr(x,v)=1/(O_Gr(x,v)*I-Gr(x,v)-----------------(a)Cr(x,v)等于紅色通道輸入信號(hào)響應(yīng)曲線與紅色通道輸出的響應(yīng)曲線乘積之倒數(shù)Cg(x,v)=1/(O_Gg(x,v)*I-Gg(x,v)----------------(b)Cg(x,v)等于綠色通道輸入信號(hào)響應(yīng)曲線與藍(lán)色通道輸出的響應(yīng)曲線乘積之倒數(shù)Cb(x,v)=1/(O_Gb(x,v)*I-Gb(x,v)----------------(c)Cb(x,v)等于藍(lán)色通道輸入信號(hào)響應(yīng)曲線與紅色通道輸出的響應(yīng)曲線乘積之倒數(shù)其中,I_Cr(x,v),I_Gg(x,v),I_Gb(x,v)分別為輸入信號(hào)R,G,B各成分對(duì)應(yīng)的電平亮度響應(yīng)曲線。5、依據(jù)4所計(jì)算出的各色彩分量的校正曲線計(jì)算通道的輸出電平值。根據(jù)(a)式,x取值在0到255之間,得到紅色通道由256個(gè)數(shù)值構(gòu)成的矯正表根據(jù)(b)式,x取值在0到255之間,得到綠色通道由256個(gè)數(shù)值構(gòu)成的矯正表根據(jù)(c)式,x取值在0到255之間,得到藍(lán)色通道由256個(gè)數(shù)值構(gòu)成的矯正表6、把5所得到的三張矯正表以查表的方式加入到視頻處理過(guò)程中。7、本方法能更好地發(fā)揮等離子顯示屏(PDP)的顯示效果,更多地表現(xiàn)出視頻圖像的灰度等級(jí)和色彩透亮度。
紅色通道由256個(gè)數(shù)值構(gòu)成的矯正表如下0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x4,0x4,0x4,0x4,0x4,0x4,0x5,0x5,0x5,0x5,0x5,0x6,0x6,0x6,0x6,0x7,0x7,0x7,0x7,0x7,0x8,0x8,0x8,0x9,0x9,0x9,0x9,0xA,0xA,0xA,0xB,0xB,0xB,0xC,0xC,0xC,0xD,0xD,0xD,0xE,0xE,0xE,0xF,0xF,0x10,0x10,0x10,0x11,0x11,0x12,0x12,0x13,0x13,0x14,0x14,0x14,0x15,0x15,0x16,0x16,0x17,0x17,0x18,0x19,0x19,0x1A,0x1A,0x1B,0x1B,0x1C,0x1D,0x1D,0x1E,0x1E,0x1F,0x20,0x20,0x21,0x22,0x22,0x23,0x24,0x24,0x25,0x26,0x26,0x27,0x28,0x29,0x29,0x2A,0x2B,0x2C,0x2C,0x2D,0x2E,0x2F,0x30,0x31,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x48,0x49,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,0x50,0x52,0x53,0x54,0x55,0x56,0x58,0x59,0x5A,0x5B,0x5D,0x5E,0x5F,0x60,0x62,0x63,0x64,0x66,0x67,0x69,0x6A,0x6B,0x6D,0x6E,0x70,0x71,0x72,0x74,0x75,0x77,0x78,0x7A,0x7B,0x7D,0x7E,0x80,0x82,0x83,0x85,0x86,0x88,0x8A,0x8B,0x8D,0x8F,0x90,0x92,0x94,0x95,0x97,0x99,0x9B,0x9C,0x9E,0xA0,0xA2,0xA4,0xA5,0xA7,0xA9,0xAB,0xAD綠色通道由256個(gè)數(shù)值構(gòu)成的矯正表如下,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x4,0x4,0x4,0x4,0x4,0x5,0x5,0x5,0x5,0x5,0x6,0x6,0x6,0x6,0x7,0x7,0x7,0x7,0x8,0x8,0x8,0x9,0x9,0x9,0xA,0xA,0xA,0xB,0xB,0xB,0xC,0xC,0xC,0xD,0xD,0xE,0xE,0xE,0xF,0xF,0x10,0x10,0x11,0x11,0x12,0x12,0x13,0x13,0x14,0x14,0x15,0x15,0x16,0x16,0x17,0x17,0x18,0x19,0x19,0x1A,0x1A,0x1B,0x1C,0x1C,0x1D,0x1E,0x1E,0x1F,0x20,0x20,0x21,0x22,0x23,0x23,0x24,0x25,0x26,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2B,0x2C,0x2D,0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,0x40,0x41,0x42,0x43
,0x45,0x46,0x47,0x48,0x49,0x4A,0x4C,0x4D,0x4E,0x4F,0x51,0x52,0x53,0x55,0x56,0x57,0x59,0x5A,0x5B,0x5D,0x5E,0x60,0x61,0x63,0x64,0x66,0x67,0x69,0x6A,0x6C,0x6D,0x6F,0x70,0x72,0x73,0x75,0x77,0x78,0x7A,0x7C,0x7D,0x7F,0x81,0x83,0x84,0x86,0x88,0x8A,0x8C,0x8D,0x8F,0x91,0x93,0x95,0x97,0x99,0x9B,0x9D,0x9F,0xA1,0xA3,0xA5,0xA7,0xA9,0xAB,0xAD,0xAF,0xB1,0xB3,0xB5,0xB8,0xBA,0xBC,0xBE,0xC0,0xC3,0xC5,0xC7,0xC9,0xCC,0xCE,0xD1,0xD3,0xD5,0xD8,0xDA,0xDD,0xDF,0xE1,0xE4藍(lán)色通道由256個(gè)數(shù)值構(gòu)成的矯正表如下,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x4,0x4,0x4,0x4,0x4,0x5,0x5,0x5,0x5,0x6,0x6,0x6,0x6,0x7,0x7,0x7,0x7,0x8,0x8,0x8,0x9,0x9,0x9,0xA,0xA,0xA,0xB,0xB,0xB,0xC,0xC,0xD,0xD,0xD,0xE,0xE,0xF,0xF,0x10,0x10,0x11,0x11,0x12,0x12,0x13,0x13,0x14,0x14,0x15,0x15,0x16,0x16,0x17,0x18,0x18,0x19,0x19,0x1A,0x1B,0x1B,0x1C,0x1D,0x1D,0x1E,0x1F,0x20,0x20,0x21,0x22,0x23,0x23,0x24,0x25,0x26,0x27,0x27,0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,0x30,0x31,0x32,0x32,0x33,0x34,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,0x40,0x42,0x43,0x44,0x45,0x46,0x48,0x49,0x4A,0x4B,0x4D,0x4E,0x4F,0x51,0x52,0x53,0x55,0x56,0x57,0x59,0x5A,0x5C,0x5D,0x5F,0x60,0x62,0x63,0x65,0x66,0x68,0x69,0x6B,0x6D,0x6E,0x70,0x72,0x73,0x75,0x77,0x78,0x7A,0x7C,0x7E,0x7F,0x81,0x83,0x85,0x87,0x89,0x8A,0x8C,0x8E,0x90,0x92,0x94,0x96,0x98,0x9A,0x9C,0x9E,0xA0,0xA2,0xA4,0xA7,0xA9,0xAB,0xAD,0xAF,0xB1,0xB4,0xB6,0xB8,0xBA,0xBD,0xBF,0xC1,0xC4,0xC6,0xC8,0xCB,0xCD,0xD0,0xD2,0xD5,0xD7,0xDA,0xDC,0xDF,0xE1,0xE4,0xE7,0xE9,0xEC,0xEF,0xF1,0xF4,0xF7,0xF9,0xFC,0xFF在本實(shí)施例中,針對(duì)RGB三通道使用了3塊有256個(gè)宏單元的CPLD,R(0-7)、G(0-7)、B(0-7)作為查表處理電路的地址輸入信號(hào),R’(0-7)、G’(0-7)、B’(0-7)為校正后對(duì)應(yīng)的響應(yīng)輸出,如果設(shè)計(jì)成ASIC,成本會(huì)更低。
權(quán)利要求
1.一種提高彩色等離子顯示器(Plasma Display Panel)圖像清晰度的方法,將被用于由視頻解碼器、模數(shù)轉(zhuǎn)換器、圖象系列處理器、PDP驅(qū)動(dòng)電路、PDP專用開(kāi)關(guān)電源和PDP顯示模塊組成的交流表面放電型PDP系統(tǒng)中,其特征在于在測(cè)量、繪出PDP顯示屏模塊的紅色通道電光響應(yīng)曲線,綠色通道電光響應(yīng)曲線和藍(lán)色通道電光響應(yīng)曲線的基礎(chǔ)上,確定各色彩分量的校正曲線,通過(guò)在0-256之間取值,計(jì)算出的各色彩分量的矯正表,以查表的方式加入到視頻處理過(guò)程后端的校正查表處理電路中。
2.根據(jù)權(quán)利要求1所述的提高等離子顯示器圖像清晰度的方法,其特征在于測(cè)量PDP顯示屏模塊的紅色通道電光響應(yīng)曲線,綠色通道電光響應(yīng)曲線和藍(lán)色通道電光響應(yīng)曲線的方法如下設(shè)置PDP顯示屏綠色通道G
輸入值為零,藍(lán)色通道B
輸入值為零,讓紅色通道R
輸入值在0,1,2.......255變化,用亮度計(jì)測(cè)量PDP顯示屏對(duì)應(yīng)的輸出亮度值,并繪制出PDP顯示屏的紅色通道的亮度響應(yīng)曲線O_Gr(x,v);設(shè)置PDP顯示屏紅色通道R
,藍(lán)色通道B
輸入為零,讓綠色通道G
輸入值在0,1,2.......255變化,用亮度計(jì)測(cè)量PDP顯示屏對(duì)應(yīng)的輸出亮度值,并繪制出PDP顯示屏的綠色通道的亮度響應(yīng)曲線O_Gg(x,v);設(shè)置PDP顯示屏紅色通道R
,綠色通道G
輸入為零,讓藍(lán)色通道B
輸入值在0,1,2........255變化,用亮度計(jì)測(cè)量PDP顯示屏對(duì)應(yīng)的輸出亮度值,并繪制出PDP顯示屏的藍(lán)色通道的亮度響應(yīng)曲線O_Gb(x,v)。
3.根據(jù)權(quán)利要求1所述的提高等離子顯示器圖像清晰度的方法,其特征在于校正查表處理電路的算法如下在繪制出PDP顯示屏的紅色通道、綠色通道和藍(lán)色通道的亮度響應(yīng)曲線的基礎(chǔ)上,確定校正曲線Cr(x,v)=1/(O_Gr(x,v)*I-Gr(x,v)),x取值在0到255之間,得到紅色通道由256個(gè)數(shù)值構(gòu)成的矯正表;Cg(x,v)=1/(O_Gg(x,v)*I-Gg(x,v)),x取值在0到255之間,得到綠色通道由256個(gè)數(shù)值構(gòu)成的矯正表;Cb(x,v)=1/(O_Gb(x,v)*I-Gb(x,v)),x取值在0到255之間,得到藍(lán)色通道由256個(gè)數(shù)值構(gòu)成的矯正表;其中,I_Gr(x,v),I_Gg(x,v),I_Gb(x,v)分別為輸入信號(hào)R,G,B各成分對(duì)應(yīng)的電平亮度響應(yīng)曲線。
4.根據(jù)權(quán)利要求3所述的提高等離子顯示器圖像清晰度的方法,其特征在于紅色通道由256個(gè)數(shù)值構(gòu)成的矯正表如下0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x4,0x4,0x4,0x4,0x4,0x4,0x5,0x5,0x5,0x5,0x5,0x6,0x6,0x6,0x6,0x7,0x7,0x7,0x7,0x7,0x8,0x8,0x8,0x9,0x9,0x9,0x9,0xA,0xA,0xA,0xB,0xB,0xB,0xC,0xC,0xC,0xD,0xD,0xD,0xE,0xE,0xE,0xF,0xF,0x10,0x10,0x10,0x11,0x11,0x12,0x12,0x13,0x13,0x14,0x14,0x14,0x15,0x15,0x16,0x16,0x17,0x17,0x18,0x19,0x19,0x1A,0x1A,0x1B,0x1B,0x1C,0x1D,0x1D,0x1E,0x1E,0x1E,0x20,0x20,0x21,0x22,0x22,0x23,0x24,0x24,0x25,0x26,0x26,0x27,0x28,0x29,0x29,0x2A,0x2B,0x2C,0x2C,0x2D,0x2E,0x2F,0x30,0x3 1,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,0x40,0x41,0x42,0x43,0x44,0x45,0x46,0x48,0x49,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,0x50,0x52,0x53,0x54,0x55,0x56,0x58,0x59,0x5A,0x5B,0x5D,0x5E,0x5F,0x60,0x62,0x63,0x64,0x66,0x67,0x69,0x6A,0x6B,0x6D,0x6E,0x70,0x7 1,0x72,0x74,0x75,0x77,0x78,0x7A,0x7B,0x7D,0x7E,0x80,0x82,0x83,0x85,0x86,0x88,0x8A,0x8B,0x8D,0x8F,0x90,0x92,0x94,0x95,0x97,0x99,0x9B,0x9C,0x9E,0xA0,0xA2,0xA4,0xA5,0xA7,0xA9,0xAB,0xAD綠色通道由256個(gè)數(shù)值構(gòu)成的矯正表如下,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x4,0x4,0x4,0x4,0x4,0x5,0x5,0x5,0x5,0x5,0x6,0x6,0x6,0x6,0x7,0x7,0x7,0x7,0x8,0x8,0x8,0x9,0x9,0x9,0xA,0xA,0xA,0xB,0xB,0xB,0xC,0xC,0xC,0xD,0xD,0xE,0xE,0xE,0xF,0xF,0x10,0x10,0x11,0x11,0x12,0x12,0x13,0x13,0x14,0x14,0x15,0x15,0x16,0x16,0x17,0x17,0x18,0x19,0x19,0x1A,0x1A,0x1B,0x1C,0x1C,0x1D,0x1E,0x1E,0x1F,0x20,0x20,0x21,0x22,0x23,0x23,0x24,0x25,0x26,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2B,0x2C,0x2D,0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,0x40,0x41,0x42,0x43,0x45,0x46,0x47,0x48,0x49,0x4A,0x4C,0x4D,0x4E,0x4F,0x51,0x52,0x53,0x55,0x56,0x57,0x59,0x5A,0x5B,0x5D,0x5E,0x60,0x61,0x63,0x64,0x66,0x67,0x69,0x6A,0x6C,0x6D,0x6F,0x70,0x72,0x73,0x75,0x77,0x78,0x7A,0x7C,0x7D,0x7F,0x81,0x83,0x84,0x86,0x88,0x8A,0x8C,0x8D,0x8F,0x91,0x93,0x95,0x97,0x99,0x9B,0x9D,0x9F,0xA1,0xA3,0xA5,0xA7,0xA9,0xAB,0xAD,0xAF,0xB1,0xB3,0xB5,0xB8,0xBA,0xBC,0xBE,0xC0,0xC3,0xC5,0xC7,0xC9,0xCC,0xCE,0xD1,0xD3,0xD5,0xD8,0xDA,0xDD,0xDF,0xE1,0xE4藍(lán)色通道由256個(gè)數(shù)值構(gòu)成的矯正表如下,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x1,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x2,0x3,0x3,0x3,0x3,0x3,0x3,0x3,0x4,0x4,0x4,0x4,0x4,0x5,0x5,0x5,0x5,0x6,0x6,0x6,0x6,0x7,0x7,0x7,0x7,0x8,0x8,0x8,0x9,0x9,0x9,0xA,0xA,0xA,0xB,0xB,0xB,0xC,0xC,0xD,0xD,0xD,0xE,0xE,0xF,0xF,0x10,0x10,0x11,0x11,0x12,0x12,0x13,0x13,0x14,0x14,0x15,0x15,0x16,0x16,0x17,0x18,0x18,0x19,0x19,0x1A,0x1B,0x1B,0x1C,0x1D,0x1D,0x1E,0x1F,0x20,0x20,0x21,0x22,0x23,0x23,0x24,0x25,0x26,0x27,0x27,0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,0x30,0x31,0x32,0x32,0x33,0x34,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,0x40,0x42,0x43,0x44,0x45,0x46,0x48,0x49,0x4A,0x4B,0x4D,0x4E,0x4F,0x51,0x52,0x53,0x55,0x56,0x57,0x59,0x5A,0x5C,0x5D,0x5F,0x60,0x62,0x63,0x65,0x66,0x68,0x69,0x6B,0x6D,0x6E,0x70,0x72,0x73,0x75,0x77,0x78,0x7A,0x7C,0x7E,0x7F,0x81,0x83,0x85,0x87,0x89,0x8A,0x8C,0x8E,0x90,0x92,0x94,0x96,0x98,0x9A,0x9C,0x9E,0xA0,0xA2,0xA4,0xA7,0xA9,0xAB,0xAD,0xAF,0xB1,0xB4,0xB6,0xB8,0xBA,0xBD,0xBF,0xC1,0xC4,0xC6,0xC8,0xCB,0xCD,0xD0,0xD2,0xD5,0xD7,0xDA,0xDC,0xDF,0xE1,0xE4,0xE7,0xE9,0xEC,0xEF,0xF1,0xF4,0xF7,0xF9,0xFC,0xFF
5.根據(jù)權(quán)利要求4所述的提高等離子顯示器圖像清晰度的方法,其特征在于上述3張表中數(shù)值為十六進(jìn)制。
全文摘要
本發(fā)明為一種提高彩色等離子顯示器圖像清晰度的方法,其特征在于,通過(guò)測(cè)量并繪制出PDP顯示屏的紅色通道,綠色通道和藍(lán)色通道的亮度響應(yīng)曲線,確定各色彩分量的校正曲線,依據(jù)所計(jì)算出的各色彩分量的校正曲線計(jì)算各通道的輸出電平值,得到各由256個(gè)數(shù)值構(gòu)成的紅色通道,綠色通道和藍(lán)色通道的矯正表,把所得到的三張矯正表以查表的方式加入到視頻處理過(guò)程中。本方法能更好地發(fā)揮等離子顯示屏(PDP)的顯示效果,更多地表現(xiàn)出視頻圖像的灰度等級(jí)和色彩透亮度。
文檔編號(hào)G09G3/28GK1388502SQ01145
公開(kāi)日2003年1月1日 申請(qǐng)日期2001年12月30日 優(yōu)先權(quán)日2001年12月30日
發(fā)明者劉一清 申請(qǐng)人:上海真空電子數(shù)字技術(shù)發(fā)展有限公司
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