[tonytony709]

眾所周知,電腦裡(例如Photo Shop)的色板;每一個顏色,都有一個編碼.就是說只要輸入同一編碼,就會得到相同的顏色.
而相機紀錄下來的影像,(假設在同一條件環境下)要經過鏡頭,感光體(CCD或CMOS),影像處理器,記憶卡,諸存下來.
問題來了;不同牌子的相機,在同一條件環境下,拍下來的照片,為何會出現顏色上的差異?
換句話說;可不可以把某些牌子的相機,說成色彩還原度不準呢?

[Nailimixam]

exposure, WB, jpg conversion, color space conversion, your display

[怪俠]

不如講下有邊一部色彩還原度準呢！

[lmichael]

唔可以咁講, photoshop係一個軟件, 他的圖像是相機輸入去,係數據轉化為數據,呢個是一個數碼過程,咁緊係個個一樣啦, 而相機係由光線轉化為圖像, 由光線轉化為數據, 呢個係由analog轉digital的過程, 每間公司的標準並唔一樣, 每間出名的公司都有佢的color table, 所以每間公司出來的色彩, 都係有少少唔同. 所以以前leica鏡, 蔡仔鏡, 人地一睇就知.

現在數碼色彩管理, 好多人用adobe的色版做標準, 變o左妹仔大過主人婆, 你話班鏡頭,相機廠,會唔會放棄自己的color table?

[pongyee]

你可以咁講，大話講一百次都變左真理。

[kingkonghk]

sick彩管理係商業大print局

[Nailimixam]

我ＰＳ用ＰＲＯ　ＰＨＯＴＯ
ＵＰＬＯＡＤ　就轉番ＳＲＧＢ

[pongyee]

CCD 或 CMOS 裡面嘅RGB 排列，本來就唔可能會準。

如果有係有100%色彩還原呢樣野，相信相機公司要set 到同一標準亦唔會太難。問題係好難有客觀嘅標準共識。

有d 電視機話佢地有4 trillion colour，呢樣野相信現時嘅相機同打印機冇可能做得到。

[kingkonghk]

>>有d 電視機話佢地有4 trillion colour，呢樣野相信現時嘅相機同打印機冇可能做得到。

1920x1080p, 都5能9一之過出晒24bit color啦, 人眼根本分5出

[pongyee]

>> 1920x1080p, 都5能9一之過出晒24bit color啦, 人眼根本分5出


咁要幾多解像度先可以一次過出哂24 BIT COLOR？

[Nailimixam]

what's the relationship between 解像度 and 24 bit color............

[Nailimixam]

>>> 都5能9一之過出晒24bit color啦

o, you mean each color 1 pixel?

but that's not really matter...

[pongyee]

that's why i asked.

[pongyee]

我果次睇果部號稱4 trillion colour 嘅非禮譜，一盤玫瑰裡面有唔同嘅顏色，
而隔離嘅十多部電視都係同一個視源，但係出唔到咁多色。

[Nailimixam]

＞＞＞而隔離嘅十多部電視都係同一個視源，但係出唔到咁多色

don't judge by direct comparison in Fortrexx, Broadwax

or at least don't believe so much

the typical way:
they tune the cheaper brand to the undesirable quality
and tune the expensive one more or less the same quality as their target selling TV
then most ppl will fall to think that their target selling TV is the best choice...