Izoom velcro software#

As a result, De Mestral began to explore the use of synthetic fibers, believing that they would provide a more resilient product. However, the cotton frayed and wore out in a relatively short period of time. He did manage to gain the assistance of one weaver, who produced two cotton strips based on De Mestral's designs. ĭe Mestral's proposal was initially rejected by industry leaders when he took his idea to Lyon, which was then a center of weaving. On a scale as small as that of hook-and-loop fasteners, matching up each of these hooks with the corresponding eye is impractical, thus leading to the indeterminate matching. With larger hook-and-eye fasteners, each hook has its own eye. The other difference is that hook-and-loop has indeterminate match-up between the hooks and eyes. This was needed, because in decreasing the size of the hooks, the strength was also unavoidably lessened, thus requiring more hooks for the same strength. Firstly, instead of a single-file line of hooks, hook-and-loop fasteners have a two-dimensional surface. Shrinking the hooks led to the two other important differences. Hook-and-eye fasteners have been common for centuries, but what was new about hook-and-loop fasteners was the miniaturisation of the hooks and eyes. Yes.but there is sharpening going on.and I never liked the results of the halos it sometimes gives.The big breakthrough De Mestral made was to think about hook-and-eye closures on a greatly reduced scale. From what I read somewhere (can't locate source, sorry), the iZoom is processed in-camera using intelligent Resolution, so there's much less image degradation than simple DZ. I have been using this feature for almost 10 years now, with various FZ's. Thats why EZ zoom is crops, but does no interpolation.resolution stays at fixed lower setting. In PP, you just crop.without the degredating interpolation, scaling up the resolution. But, it's not immediately obvious to me why that produces a better result than simple digital zoom at the same magnification.ĭigital zoom is a simple sensor crop, same as if you'd cropped in PP to artificially 'zoom' a portion of your imageĪctually Digital zoom does interpolates the resolution back up to the original resolution.

Izoom velcro software#

Image noise in the original file can be smoothed out in a few different ways, but in handling noise, we're probably best off using a good after-market noise reduction program, rather than relying on in-camera noise reduction or other software (or hardware) manipulations. Detail not captured in the original RAW file can never be manufactured.

To me, the important part of this is that none of these non-optical 'zooms' will add detail. But I have never thought that the detail and noise were improved, when compared to a cropped and edited RAW file, providing the images are displayed at the same size. One benefit of the cropped sensor approach is that I can frame the subject better, and I can sometimes get a more accurate exposure. But for best results, I've never found anything better than a carefully cropped and processed RAW file. This suggests that the i.ZOOM scaling up is the source of the enlarged noise that Graham doesn't like - but it is perhaps somewhat better than EZoom when used in the lower half of its addtional range extension.įor small prints, web displays, cell phone displays, and for images which don't rely on rendition of fine detail (buildings, distant landscapes, some portraits) cropped sensors and software generated fixes can be perfectly fine. 'Now let's look at the case of I.Zoom or Panasonic's 'intelligent zoom feature' In this mode of operation the image dimensions always remain the same 4000 x 3000, 3264 x 2448, 2048 x1536 etc for the 12M, 8M and 5M file sizes however in this mode the magnification is achieved by cropping into the image from the sensor and then re-sizing it to the original dimensions in software.' How many of Panasonic's features truly work remain a mystery, so we're left to do as Graham has done and test them to see what they do rather than peeling back into how they do it. I sent him an email a couple of weeks ago but got no reply. It tells why and when to use is but doesn't really explain the mechanics of what's done in the camera. Yes, I've watched that video a couple of times.