Archived posting to the Leica Users Group, 1999/10/13
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Let me put it this way... the stated resolution of a CCD is not the same as the effective resolution of the image file that it produces. Why? Because the image file is only based on 1/4 the number of pixels in the CCD which captured it. Your statement reminds me of some of the claims made by low-end flatbed scanners in recent years. They claim outrageous resolutions of 6,000x6,000dpi while acknowledging that this lofty resolution comes through interpolation rather than proper optical resolution. However you would like to couch this topic, it is clear that digicam CCDs are in their infancy. While the technology is improving, the best way to obtain a digital image file is through scanning a film/slide image. In my mind, this is the best of both worlds. - ----------------- From: Anthony Atkielski [mailto:anthony@atkielski.com] Real resolution is the same as the stated resolution. The human eye uses the same pattern of receptors, and so the alleged drawback of the CCD with a mosaic filter in fact closely matches the actual mechanism of human vision. You don't need the same chrominance resolution as luminance resolution in any image intended for human viewing, because you can't see it. -- Anthony - ------------------------------