The resolution of the scanner is determined in three ways: the optical part, the hardware part, and the software part. That is to say, the resolution of the scanner is equal to the resolution of its optical components plus its own resolution obtained by processing analysis by hardware and software.
The optical resolution is the actual number of spots that the optical component of the scanner can capture in an area per square inch. It refers to the physical resolution of the scanner CCD (or other optoelectronic device) and the true resolution of the scanner. The value is the value obtained by dividing the pixel point that the photoelectric element can capture by the maximum scanable size of the scanner. For example, a scanner with a resolution of 1200 DPI often has a resolution of only 400 to 600 DPI in its optical portion. The resolution of the extended part is jointly generated by hardware and software. This process is generated by computer analysis of the image and mathematical filling of the blank part (this process is also called interpolation processing).
The optical scan and output are one-to-one, what is scanned, and what is output. After processing by computer hardware and software, the output image will become more realistic and the resolution will be higher. Most of the scanners currently on the market have software and hardware extensions for resolution. Some scanners write 9600×9600 DPI, which is only the maximum resolution obtained by software interpolation, not the true optical resolution of the scanner. So for the scanner, the resolution has optical resolution (or optical resolution) and maximum resolution. Of course, we care about the optical resolution. This is hard work.
We say that the resolution of a scanner is as high as 4800 DPI (this 4800 DPI is the sum of optical resolution and software difference processing), which means that when scanning an image with a scanner, it can collect 4800× on a 1 square inch scanning surface. 4800 pixels (Pixel). The 1 inch square scan area, scanned at a resolution of 4800 DPI, produces an image size of 4800 Pixel x 4800 Pixel. When scanning an image, the higher the scanning resolution is set, the finer the effect of the generated image, and the larger the generated image file, but the more the interpolation components.
The optical resolution is the actual number of spots that the optical component of the scanner can capture in an area per square inch. It refers to the physical resolution of the scanner CCD (or other optoelectronic device) and the true resolution of the scanner. The value is the value obtained by dividing the pixel point that the photoelectric element can capture by the maximum scanable size of the scanner. For example, a scanner with a resolution of 1200 DPI often has a resolution of only 400 to 600 DPI in its optical portion. The resolution of the extended part is jointly generated by hardware and software. This process is generated by computer analysis of the image and mathematical filling of the blank part (this process is also called interpolation processing).
The optical scan and output are one-to-one, what is scanned, and what is output. After processing by computer hardware and software, the output image will become more realistic and the resolution will be higher. Most of the scanners currently on the market have software and hardware extensions for resolution. Some scanners write 9600×9600 DPI, which is only the maximum resolution obtained by software interpolation, not the true optical resolution of the scanner. So for the scanner, the resolution has optical resolution (or optical resolution) and maximum resolution. Of course, we care about the optical resolution. This is hard work.
We say that the resolution of a scanner is as high as 4800 DPI (this 4800 DPI is the sum of optical resolution and software difference processing), which means that when scanning an image with a scanner, it can collect 4800× on a 1 square inch scanning surface. 4800 pixels (Pixel). The 1 inch square scan area, scanned at a resolution of 4800 DPI, produces an image size of 4800 Pixel x 4800 Pixel. When scanning an image, the higher the scanning resolution is set, the finer the effect of the generated image, and the larger the generated image file, but the more the interpolation components.
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