Negative scanning processing method and its device

Abstract

A negative film scanning processing method used in a scanner, the steps include scanning the negative film to generate an original image; performing a correction algorithm on the original image according to a correction curve to generate a corrected image; The image is subjected to a negative algorithm to produce the final image.

Description

technical field [0001] The present invention relates to a negative film (Negative Film) scanning processing method and its device, in particular to a negative film scanning processing method and its device for correcting a scanned image according to a pre-stored correction curve. Background technique [0002] In the digital image processing technology, the reflective draft and the positive film use the corresponding Kodak IT8 color scale card for color correction, but the negative film does not have the corresponding IT8 color scale card. Usually, the digital processing process of negative film is to use a set of negative film processing algorithm (Negative Algorithm) to remove the "color mask" existing in the negative film base. [0003] Figure 1 is a diagram of a known negative film digital processing procedure. Referring to FIG. 1 , the negative film 100 first passes through a scanning process 110 to generate an original image 120 . Next, according to the pre-adjusted n...

AI Technical Summary

Problems solved by technology

Furthermore, the most critical feature parameter adjustment is done manually, because it is human judgment, so the image quality is difficult to guarantee

In particular, these negative film feature parameters cannot completely eliminate the differences between different scanner models, so the same negative film can be scanned on different models to obtain different color performance effects, which cannot form an enterprise standard

Images