Method, device, computer equipment and storage medium for determining inkjet interval time

Abstract

The embodiment of the present invention discloses a method for determining the inkjet interval time. By scanning a plurality of test samples obtained by printing with different inkjet time intervals, multiple scanned images are obtained; grayscale processing is performed on each scanned image respectively. Obtain the corresponding ink grayscale image; determine the test area corresponding to each printing test point, and each test area contains multiple pixels; determine each ink mark according to the gray value of the multiple pixels in each test area The scatter distribution matrix corresponding to the grayscale image; obtain the preset convergence threshold; determine the corresponding convergence interval corresponding to the ink grayscale image according to the scatter distribution matrix and the preset convergence threshold; set the spraying interval corresponding to the ink grayscale image with the smallest convergence interval The ink interval time is determined as the target ink ejection interval time, which improves the inkjet printing quality and realizes automatic determination of the ink ejection interval time.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a method, device, computer equipment and storage medium for determining an inkjet interval. Background technique [0002] Inkjet technology is a new non-contact, pressureless, and plateless printing technology. It can be printed by inputting the information stored in the computer into the inkjet printing machine. For example, the inkjet printing sub-module in the financial instrument bill module It is used to print information such as bill receipts. Due to batch and process reasons, the hardware characteristic parameters of inkjet ink cartridges have a certain degree of discreteness, especially the setting of the inkjet interval time will cause the subsequent inkjet ink to scatter and scatter, and cannot be concentrated to the desired printing position, which reduces the printing effect . Different ink cartridges have different ink ejection intervals. However, ...

AI Technical Summary

Problems solved by technology

Due to batch and process reasons, the hardware characteristic parameters of inkjet ink cartridges have a certain degree of discreteness, especially the setting of the inkjet interval time will cause the subsequent inkjet ink to scatter and scatter, and cannot be concentrated to the desired printing position, which reduces the printing effect

Different ink cartridges have different ink ejection intervals. However, the existing technology is to determine the appropriate ink ejection time interval by detecting all incoming ink cartridges. This one-by-one test will consume a large number of ink cartridges and pass It is difficult to ensure the accuracy and objectivity of determining the inkjet time interval by artificially comparing the printing effect

Or the theoretical calculation of the ABC column inkjet time interval may not be consistent with the actual, resulting in poor overall printing effect

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