Taking the place of the analogue video editing system, a video editing system uti- lizing computers, the so-called non-linear editing system, is becoming the main- stream for editing images. However, it has been considered that, in the case of non- linear editing, a deterioration of image is generated easily due to the image compres- sion generally adopted, which differs from the case of analogue editions. Nippon Steel has established a highly precise image evaluating method through evaluating The image form which the characteristics have been extracted, instead of applying Subjective evaluation, which is the general method for evaluating image quality.
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