The advantages and uses of traditional photographic images and digital photographic images (4)

3.2 Printing Paper

If you use a general paper inkjet printer, spray a drop of ink onto the paper as shown in Figure 7. The ink dots are still etched in the periphery and penetrate into the deep layers of the paper, and the wet images of the ink dry slowly, affecting the printing speed. In order to prevent the ink from penetrating and accelerate the evaporation and drying speed of the ink droplets, it is generally necessary to apply a coating on the surface of the paper. The coating contains a polymer adhesive and titanium dioxide (TiO) or talc (SiO2). The thickness of the coating is matched with the ink. It helps to absorb some of the ink moisture (Figure 8, Figure 9), can promote rapid drying of the image, shorten the spray drawing time, reduce costs.

4 advantages and uses of digital photography images

4.1 The advantage of digital photography images is that they are produced in a variety of ways. The images are real, colorful, clear, and distinct.

4.2 Usage: Almost all of the traditional photographic imaging applications can be used interchangeably, and are widely used in CT, MR, DSA, ECT, US and other digital medical imaging inspection devices. It is also most suitable for large format images. Such as various kinds of policy propaganda images, product advertisements, light box patterns, etc.

Its only deficiency is that the images reproduced with it are not as vivid as the images printed with traditional camera reliance materials, the colors are beautiful, the layers are full, and the contrasts are soft.

5 Conclusion

From the advantages and applications of the above traditional photographic images and digital photographic images, it can be seen that for the current level of quality of digital photographic images, it cannot yet completely replace the application of traditional photographic images. People will take advantage of their respective strengths and avoid them. They will also coexist for a period of time.