"Differential Perfection Software" Unique Features

The manuscripts of the attached film are scanned and inserted into the layout and output. This is often used in remote transmission of newspaper layouts in the early stages of prepress digitalization. Now, when CTP gradually replaces traditional platemaking, this technology becomes increasingly important and will become a whole. The key to digital success or failure. The key to the standardization of the digitalization process of the linked manuscript is the actual restoration of the site. The closer the site is restored to the manuscript, the more the technology can replace the traditional optical platemaking process. The more direct the computer can represent the practicality. However, in addition to the mature use of selective scanners and their COPYDOT technology, the true restoration of the originals on the screen is another important point in the performance of the dirty-repairing of screen-mounted films. Early "repair" work is usually handled by a simple image processing system, and the general image processing software usually lacks professional processing of the dot processing of the attached film, often leaving the function of "repairing dirty" in the ordinary " On the level of "defective processing", the repair of outlets, especially the handling of colored four-color films, is often at a loss. Recently, the “Perfectin” software developed by Danish company Escofut is a professional image processing software for film scanning. Its appearance undoubtedly brings a new impetus to the current CTP's full practicality.

"Differential Perfection Software" Unique Features

The original purpose of "Dirty Dirty Professional Software" was designed to address the characteristics of the scanned dot image. The best format for film scanning on the grid is basically located in the "bitmap" format of the picture due to its special form of expression. The processing is based on this format. When the film reflects a four-color image, the synthesis of the “four-color bitmap” shows the great advantage of this software. We used the image processing software division from the past. Photoshop in the same situation on the processing method of the network point of view to describe the unusual place of this software.

(1) Restore the backbone of the real network, supplemented by a variety of function selections, and fully realize the digital purification effect of the original network.

When ordinary image processing software uses its own "filter" (such as photoshop's filter filter) to identify "dirty spots" ("dot spots"), it usually selects the range of "dirty spots" and cannot take too much value. Otherwise, fine dots are misjudged as “dirty dots” and are filtered out to make the finished product appear “absolutely net” phenomenon; and the “dirty dots” appearing in the blank areas need to be selected from one area to another, and the area-by-area clean-up is inefficient; The “dirty dots” in the “Dirty Dots” are difficult to recognize and clear due to the adhesion to the dots. For example, manual repairs are performed in the form of pixels. The workload is huge, and the dot shapes that are repaired are different, which directly affects the quality of the copy of the original film on the finished product.

"Perfect Perfection Professional Software" (Perfection) provides four kinds of filter tools based on the use of filters in general image processing software, and for the related factors such as the shape of the film amplitude modulation screen, the number of screen lines, and the screen angle. :Autoclean, dustfllter, Dotclean, Rexample, to achieve the perfect situation with the net compensation calculation of the processing originals. The “dotclean” “dotclean” is to automatically analyze the “dirty dots” between “dot points” to remove black dots that do not belong to the “dot points” and to give the edge a smooth correction according to the shape of the “dot points”.

This kind of correction also takes into account the transitional changes in the “dot points” that represent “grayscale changes.” Therefore, the design of this function is like “finishing the finishing touches” for the entire “renovation” work, and becomes the key to the digital purification of linked manuscripts. With the help of other filters, it is a breeze to get dirty.

(2) Using novel processing methods to break through the limitations of the standard image format, the "repair" feature really becomes highly efficient.

Film scans must use high-resolution "bitmap" input to have high dot-reduction characteristics. We have previously demonstrated this through multiple trials and special treatises. Therefore, all image processing software that invokes this large resolution graphic is required. Faced with the speed and efficiency of the process, PhotoShop is no exception. When the film is a color content, four large-capacity "bitmaps" reflecting four colors are processed at the same time, causing problems for ordinary image processing software such as Photoshop.

On the one hand, the image format does not have a specific color image format in which the four-color “channels” are all “bitmaps,” because the color format of a standard multi-channel color image must be a “grayscale image” in order to process it. When “dirty” is conveniently displayed, it is necessary to convert the “bitmap” format of each color to a “grayscale” format. This is the process in which the space occupied by the image conversion is increased sharply after converting to a “grayscale map”. 8 times to "bitmap"! Take the 8-shot film as an example. When scanning at 900 dpi, the color of the “bitmap” file is 12.5 megabytes per color. When converted to “grayscale”, the file is increased to 100 megabytes per color. The synthesized four-color file is Up to 400 megabytes. Such a high capacity requirement imposes high requirements on the computer used to process pictures, whether from the memory or the central processing unit. In actual use, we encountered the phenomenon of "deadness" caused by the high occupied space of pictures. Therefore, the conventional image processing software has a problem of "too low efficiency" when processing a film scan image.

On the other hand, the ordinary image processing software needs to return to the "bitmap" to provide the layout insertion output after undergoing the color correction of the color film color pattern. It needs to go through the "bitmap", a "grayscale image" and a "bitmap" after passing through. Two conversions result in pixel loss, especially highlights. However, using the CMYK TIFF format instead of the second one makes the file too large, the photo-taking time lengthens, and the second-time screen-hanging is likely to cause loss of detail and moire.

"Perfection" shows the level of professional film scanning and purifying. The software processes color film images directly on a variety of "bitmaps" and displays them on the screen in a "simulation" format so that "dirty" processing can be performed without increasing the file size. Fast and space-saving, at the same time, the direct storage after the repair of the network makes the pixel quality without any loss, completely breaking the limitations of the standard image format, can be described as a major breakthrough in film dirty technology.