guswan

Originally posted by hold_find at 2006-10-27 00:21:
係咪即係raw 含較多資料，比jpeg不易到達那"太暗或太爆"的程度，令執相更容易?

吾係.

因為jpeg會經過壓縮，
一定有資料損失,
資料越足夠,執相時就越多材料供你修改.
所謂嘅資料，即每pixel嘅位置同RGB,
壓縮其中一個方法,是電腦會選擇一些相連而RGB接近的pixels改成同一RGB,
所以file會細左,但就越吾detail.

over左即係傾向白，
可以咁睇，白嘅RGB係：255 255 255
over左嘅色，你可能得番238，245，220，
= 1 : 1.029 : 0.924
如推番轉頭會傾向灰，黑。

相反under傾向黑，就好辦一點：
黑嘅RGB係：0, 0, 0
用同一個距離嘅顔色,
一個接近黑色： 17, 10 , 35

= 1 : 0.6 : 2

如按比例推,後果自己計下就知,
對電腦呢講,差別大好多．
明吾明?

其實可以局部invert再推，不過太advance,我會收100000一張[size=-1]起.

[ Last edited by guswan on 2006-10-27 at 05:18 PM ]

guswan

d佬,我來踩場。

guswan

Originally posted by d228216 at 2006-10-27 17:22:

你其實係邊個......10仔??

10仔係邊個?
答得咁詳盡都吾加分?

[ Last edited by guswan on 2006-10-27 at 05:32 PM ]

guswan

Originally posted by hold_find at 2006-10-27 17:43:
完全明白了，多謝解答
抵加分啦

不用謝，
如在執相過程中途要save,
我建議你用tif格式，
到完成時才用有壓縮的格式。

tif原汁原味．

guswan

Originally posted by hold_find at 2006-10-27 18:16:
用png可不可以?

never, 會有野lose左你吾知，save 多幾次就越lost 越多．

[ Last edited by guswan on 2006-10-27 at 06:39 PM ]

guswan

Originally posted by hold_find at 2006-10-27 18:46:
除了tif和bmp，還有甚麼圖片檔是原汁原味的？

sorry,由於我有需要用嘅格式,
只局限於bmp,gif,jpeg,png,psd,tiff,eps...
其他格式我唔知,out of my knowledge.
我搵到再話你知.
你可以搵下adobe個site.
其他有關photoshop執相嘅嘢可以試下問我,
我保證如果我答唔到,全香港答到你嘅唔超過10人.

作得大左.

[ Last edited by guswan on 2006-10-27 at 11:02 PM ]

guswan

Originally posted by d228216 at 2006-10-27 20:02:

sohozhk ???

no la, 只不過我見hold_find聽到舊雲咁,忍唔住出手.
oh, sry, 我講野係咁直.

[ Last edited by guswan on 2006-10-27 at 11:01 PM ]

guswan

Originally posted by d228216 at 2006-10-27 23:03:

  汝非故人

誠哉,昔吾居青山之時未嘗謀君面,
想汝必南葵涌之同患也.

guswan

Originally posted by d228216 at 2006-10-27 23:19:
今朋昔友併肩行
日月如梳感情增
遇神見佛天保祐
妖魔鬼怪遠離我

gob bless u

guswan

Originally posted by hold_find at 2006-10-31 21:10:

乜我好雲咩？
我呢D係不恥下問

問題唔係你身上,
乜你咁敏感?
問係應該嘅,無咩恥唔恥.
比著我都會聽到一舊雲,
版主,sry.

[ Last edited by guswan on 2006-10-31 at 10:45 PM ]