底扫，有谁自己用过？

UWB

that depends a lot on the resizing/resampling algorithm.

原帖由 不道 于 2008-9-12 00:44 发表


如果最后的结果都是5bpp, 效果有区别么? 换句话说, 扫描仪做的RESIZE和软件作的RESIZE有没有区别?

UWB

but why do you need to resize when you just display the image on the screen?...

不道

翻看60M的图, 速度肯定没有翻看600K的图快.

我的屏幕原始分辨率最高只有1680*1050,  扫出来的"大片"的Width*Height各是多少?

UWB

the scanning resolution depends on what the scanner can offer. nikon super coolscan can go up to 4000 dpi.

but,
It doesn't matter what your screen resolution is, because that's not the purpose of scanning. If you just want to check which negatives are worthy of further processing, of course you don't have to generate and leaf through all the 60M images.

however, if a particular image is very much to your liking.. it's best to scan it at high resolution and process it after. In this case, an image that is finally saved in JPEG in, for example, 5bpp is for sure nicer than one that is from a poor scan and saved at the same rate.