幾十K就無論如何都不可能會晒到出來,一張相的解像要求是尺寸X300dpi(dots per inches),即3R的話便需要4.51Mb,而4R則需要6Mb左右,是指張相在打開了的狀態,而不是抄進手指仔的file size,如果閣下所指的是打開時的幾十K的話,便會又起格仔又模糊了。
除非再影過,否則是如何都不可以由細相變大相的。
They are right, that might be the best solution. However you cannot take the photos again, you might try to use photoshop (But the result maybe not very well).
First, open your ideal size of the image. (2R? 3R?)
Second, open your 幾十K photo.
Thirdly, place your enlarge file on the ideal size (step 1).
Then you can enlarge the file fit on the ideal size. If it is not look good, you can try adjust the contrast, brightness, and colour. Finally, I prefer you save in Tiff file, that would help your file keep in the best quality.
P.S.: I know this is the only way can save your file, but I prefer you shoot that again.