>Is it really possible to enhance the images on surveillance tapes the way they do on the show? A: This is possible, yes. Good photo "retouching" software does the same sort of thing (increase/decrease contrast, increase sharpness) and more specialized software can even convert small differences in color in the original image to contrasting colors to provide the effect of even more enhancement. 真的有可能像剧中那样处理监视录影带吗？ 是的，这是有可能的。好的相片"重建"软体可以做类似的工作〈增加/减少对比， 增加锐利度〉。更专门的软体甚至可以微调原始照片的色调来做对比，由此达到 更好的佳化效果。 >How much can you enhance the images? A: Again, it's not my field, but I suspect it's less than what they show on CSI. I could be wrong, though - recall that many of the photo enhancement techniques (software) were originally developed for military applications and clandestine intelligence ("spy") operations, and those are quite sophisticated. How much of that technology has filtered down to the law enforcement/forensics community, I'm not sure. It's probably a safe bet that the military/intelligence software is better than what's available to forensic analysts, which is better than what's (usually) available to joe-on-the-street. 有可能把影像佳化到什麽程度？ 这也不是我专精的领域，不过我想大概没有剧中那麽厉害，不过我可能是错的。 大部分的影像处理技巧〈软体〉原本都是为军事还有间谍活动所设计的，那些软 体都满有能耐的。我不确定究竟有多少这种科技被下传到执法/监识的领域里。 不过应该可以这样说，军事/情报软体会比监识好，而监识有的东西又比平常人 可以拿到的好。 --

※ 发信站: 批踢踢实业坊(ptt.cc) ◆ From: 66.183.175.104 ※ 编辑: raphaelca 来自: 66.183.175.104 (03/28 16:25)