chhanthony
發表於 2009-4-1 16:27
因為改由黑白驅動，色彩與色彩之間變化自然緊緻，沒有人工修飾感同不安定的色彩
鐵心心 發表於 2009-4-1 14:47 http://www.post76.com/discuss/images/common/back.gif
請問咩叫黑白驅動?人工修飾顏色係唔係Billiant Color?
chhanthony
發表於 2009-4-1 16:34
第一幅好似有O的爆光
第二幅好似有O的偏黃
色温好似有O的事,你有無睇過係唔係6500K色温
有錯請指正
鐵心心
發表於 2009-4-1 16:45
第一幅好似有O的爆光
第二幅好似有O的偏黃
色温好似有O的事,你有無睇過係唔係6500K色温
有錯請指正
chhanthony 發表於 2009-4-1 16:34 http://www.post76.com/discuss/images/common/back.gif
D圖我PHOTOSHOP改出黎，只係參考
我試過用電影MODE 去SET中色溫
效果和之前不一樣
最大分別係暗位、色階表現、光暗
電影MODE的感覺是比較像戲院看的色彩風格
黑白驅動是指著色的手法，好處是階調性強，暗部描繪力高、柔和、膚色好
SO不是色溫的問題，是PIONEER 電影MODE內的方針不同，
是專為觀賞電影黎設定的畫調，
我看了很耐，感覺找不出不安的色彩同層次感，
相比之下，之前所自行SET下的(認為最完美的SETTING)去相比後，
在膚色/面部層次感也感覺出問題，我從前沒有這大感覺的。
現在表現的手法和高階DLP投影機十分像。
鐵心心
發表於 2009-4-1 16:48
其實最明顯睇到色溫準確咗,陽光感出番哂
mankoo 發表於 2009-4-1 16:25 http://www.post76.com/discuss/images/common/back.gif
哈哈.....PHOTOSHOP相黎=__=
因為相機應該影不出其中的奧妙，
是色調之間的緊緻度，自然的漸進化色彩，是投影機的描寫風格
chhanthony
發表於 2009-4-1 17:39
多謝你嘅分享, 我都揾到少少資料, 睇下對你有無用
First, some basic principles and terminology. Color performance is measured in 3 ways:
Gray scale tracking. This is the aspect of color performance that gets the most attention. It concerns the display's ability to provide a neutral shade of white, all the way from darkest black to the brightest white. If the display can't do this, then it will add a color cast that makes images look very unnatural.
Color Decoding. This is the display's ability to properly render the relative brightness of the primaries and hue of the secondaries. All commercial displays include a Color and Tint control. These are basically color decoding controls, though their effectiveness is extremely limited because Color adjusts the lightness of ALL of the colors and Tint effects hue of ALL of the secondaries. The problem is that displays all-too-often have color decoding errors that effect the colors differently. For example, you can adjust Color/Tint to get the correct brightness of blue and the correct hue of cyan, but the brightness of green and red can still be inaccurate. You could adjust the color control for red, but then blue and green would be inaccurate. See the problem? A full set of color decoding controls addresses this problem by offering color/tint controls that operate on red/magenta and green/yellow independently.
Color Gamut. This is the range of colors that the display is capable of rendering. The gamut is appears as a triangular pattern plotted on a standard xy chart. The triangle is defined by the xy points of the primary colors (red, green, and blue). The secondary colors (cyan, magenta, and yellow) are derived from the primaries. These color points have specific definitions for both standard and high definition signals. All commercially available video material is mastered according to these standards. If the display cannot reproduce the gamut accurately, then the image will suffer. In recent years it seems that digital displays have gotten increasingly inaccurate in this respect. The only way to fix it is with a Color Management System (CMS). A CMS can make a profound difference to the performance of the display, but few offer one and of those that do not all work properly.
It is important to understand that these three aspects of color performance--though in some ways interactive--are for the most part independent. You can have good gray scale tracking and poor color decoding. You can have good color decoding and a very inaccurate color gamut. The bottom line is that each needs to be adjusted separately.
Terminology
xyY - A common method for precisely measuring color performance. x and y are coordinates that plot out a color on the triangular CIE chromaticity chart mentioned above. This graphically represents the established definitions of the color spectrum. Y is the brightness of the color. This is not plotted by these xy coordinates, but instead constitutes the luminance or brightness of the color. This is discussed below.
Color Saturation - the colorfulness of the color relative to its own brightness. A color's saturation is measured on the CIE chart as the distance from the white point. Add saturation to a color and it will begin to appear excessively deep and rich. Under saturate a color and it will begin to appear as a neutral gray of a similar brightness.
Color Hue - the primary characteristic of color that allows us to distinguish one color from another. A color's hue is measured by its angle to the white point. When a color's hue is off, its appearance will seem contaminated by other colors. For example, red that is too yellowish will begin to seem orange. Blue that is too reddish will begin to appear purplish.
Color Brightness - the luminance of color. A color's brightness can be measured by a simple light meter.
These are abstract concepts and sometimes a picture really does say a thousand words, so here are examples that illustrate the three characteristics of color.
鐵心心
發表於 2009-4-1 18:00
多謝你嘅分享, 我都揾到少少資料, 睇下對你有無用
chhanthony 發表於 2009-4-1 17:39 http://www.post76.com/discuss/images/common/back.gif
冇咩用{:1_258:}
因為E個文章同色準沒有關係
而我本身都係色彩管理MODE自己再SET過了色
本文重點是色的描寫力
例如由深綠至淺綠之間，出現的各種不同的階調，一般TV在這方面會強行把大部份暗綠色去強化成深綠，把大部份淡綠色去強化成淺綠，
所以中心階調色彩表現差，而且各色彩的階調接合不自然，但這好處是明顯強化深淺的黑白對比感，
一般人覺得很華麗，但是如果看投影或戲院中，你會感覺到兩者的手法是不同，
投影和戲院是色階調表現重視。也是之前和大家研究的電影味
chhanthony
發表於 2009-4-1 18:08
本文重點是色的描寫力
例如由深綠至淺綠之間，出現的各種不同的階調，一般TV在這方面會強行把大部份暗綠色去強化成深綠，把大部份淡綠色去強化成淺綠
如果係咁.O的色咪已經唔O岩囉?
以我認知只要3個primary color同3個secondary color係準
咁其他色都會準, 唔會出現[強行把大部份暗綠色去強化成深綠，把大部份淡綠色去強化成淺綠]
唔好意思, 因為O的形容詞太抽像....唔係好明
鐵心心
發表於 2009-4-1 18:23
如果係咁.O的色咪已經唔O岩囉?
以我認知只要3個primary color同3個secondary color係準
咁其他色都會準, 唔會出現[強行把大部份暗綠色去強化成深綠，把大部份淡綠色去強化成淺綠]
唔好意思, 因為O的形容詞太抽像.. ...
chhanthony 發表於 2009-4-1 18:08 http://www.post76.com/discuss/images/common/back.gif
E個唔關色事
係描寫手法問題
其實都好抽像好難說出黎....
你只用明白現在畫面同用DLP投影差不多就成了
DLP投影的感覺是什麼?如果明白應該知我說什麼
chhanthony
發表於 2009-4-1 23:00
可能真係感覺, 好難形容
我自己用緊DLP投影機, 我自己都講唔出個咁感係咩
只可以講同Sony 嘅VW60 同 Espon 上年部5000嘅感覺唔同
佢地係好sharp好利. 但好似好簿
算啦, 我領誤力太低, 感激鐵心心 兄不厭其煩地講解
maner394
發表於 2009-4-1 23:13
其實要用說話同文字解釋一Ｄ感覺係好難，好似初接觸影音，係雜誌睇到形容聲音"乾、瘦、肥，濶......等，睇到一頭冒水要經一些經驗人仕，在現場話比你聽咩叫肥，咩叫乾你先知咁既聲原來叫肥，其實一早聽過，但唔知點形容，所以你兩位對畫質有要求既高手，我提意兩位揾日約出來，大家互相研究下，一定得益不少{:6_142:}
