What does the camera lens's ccd mean?
Thus, pixel CCD size is indeed important, but not the only guarantee of digital image quality, must ensure that the calculated pixel value helps to produce a clearer image. In addition to the resolution of image files, digital cameras require high-quality color management systems, excellent processing algorithms, precision analog-to-digital converters, precise file handling methods, high-quality optical zoom lenses, and a set of comfortable adjustments Device.
As the digital camera introduced the software interpolation resolution, so in the resolution of the digital camera real cut rate, first look at the CCD of the sub-rate, and then look at the finished product camera cut rate. If the CCD and camera resolution is different. It is certainly the result of using software interpolation. In addition, for digital cameras, the resolution of its optical lens must be better than the resolution of the CCD, and CCD pixel values, must be greater than the final effective image sub-rate.
In principle, the digital camera uses a photographic device containing color photographic elements (hereinafter referred to as photographic elements) to record the light intensity and image color taken by the lens, and then generate a color image through the processor in the camera Calculate the complete color value of each corresponding pixel in the final image file, through which the digital photo similar to the film photo is formed. However, not all of the sensor photographic elements can play a role in the final formation of the photo. Because the digital camera will be the outside edge of many "black" (light is blocked) photography as a reference. They are not sensitive to themselves. Since each pixel needs to retrieve data from all the directions around it, there are some "black" photographic elements that provide the edge pixel values, but they do not appear in the final picture, which is the difference between the CCD pixel and the CCD effective pixels
A clear and satisfying picture with a digital camera is a high-resolution image sensor CCD. As long as you have enough pixel values, you can use the image resolution adjustment, get the best finished product. Therefore, the resolution of digital cameras is usually expressed in pixels. However, taking a clear picture is the need for enough pixels, the pixel value is a measure of a digital camera's main indicator, but not the only indicator.
Is the photosensitive element referred to ~ ~ ~ CCD is a digital camera to record light changes in the semiconductor devices, usually record millions of pixels. Digital camera specifications in the number of megapixels, referring to the CCD resolution, which means that this digital camera CCD contains the number of photosensitive components.
