請介紹校機碟

chhanthony

I disagree about x=飽和度 and y=色調.

Both x,y together represent the x-y coordinates of a color  ...
dominickwok 發表於 2011-9-28 15:19

dominickwok兄

x-y coordinates同lumenance只係其中一種叫法
等於RGB都有好多如RGB High offset/RGB Brightness Contrast/RGB High Bais，分別只在於名稱
CMS嘅功用係畀你將三原色及三副色(紅藍綠黃青洋紅)嘅飽和、色調同流明度(亮度)調校到標準嘅座標。

Y唔等同Brightness，Brightness只係調校黑位時用，有時會對Gamma有間接影響，
而Contrast會對Y有所影響，但相比用唔同嘅燈膽模式或光圏大小無咁直接。

有時CMS唔一定可以做到完全踏正標準座標，呢個時候就要作出取捨，第一個要優先處理嘅係Y流明度
原因人眼中感應光嘅晶體比感應顏色嘅多，所以even 飽和同色調唔啱都要流明度啱
而其次嘅係色調，再到飽和。

chhanthony

之前post錯咗
次序係Y流明 x色調 y飽和

chhanthony

當部機線性同調校彈性大時，你陏Tint係唔會陏到Color (saturation)同lumenance的
之前有編文章教，如果無CMS 就以分別Red 100%去校color，之後用Cyan 100%去校Tint。

呢個有啲似donmickwok兄之前所講嘅教法

dominickwok

"Y唔等同Brightness，Brightness只係調校黑位時用"
chhanthony 發表於 2011-9-28 16:33

Sorry, my post was not clear about the term "Brightness".  It is the "Brightness" for the individual color in the display's CMS (not the Brightness in the main picutre menu).  This control can be called "Luminance", "Brightness", "Value", or whatever.  In my AE4000, it's called "Brightness" (besides "Color" meaning for saturation, and "Tint" meaning for tint).  So that's why the confusion.

chhanthony

Sorry, my post was not clear about the term "Brightness".  It is the "Brightness" for the individu ...
dominickwok 發表於 2011-9-28 17:01

係我誤解咗你意思，我Sorry先啱
dominickwok兄係少數對影像調校有一定認識而又肯分享嘅人
真係好有heart，其實係網友之福，大家多啲交流交流，分享下各種影像調校智識吖

Netmans

係我誤解咗你意思，我Sorry先啱
dominickwok兄係少數對影像調校有一定認識而又肯分享嘅人
真係好有heart ...
chhanthony 發表於 2011-9-28 17:06

    Thank you all ching