1 / 27

Image Coloring

Image Coloring. Halftone. Halftone is the reprographic technique that simulates continuous tone imagery through the use of dots, varying either in size, in shape or in spacing. Examples of Color Halftoning with CMYK Separations.

chaz
Download Presentation

Image Coloring

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Image Coloring

  2. Halftone Halftone is the reprographic technique that simulates continuous tone imagery through the use of dots, varying either in size, in shape or in spacing.

  3. Examples of Color Halftoning with CMYK Separations

  4. The first printed photo using a halftone(December 2, 1873)

  5. Dithering Dithering is a technique used in computer graphics to create the illusion of color depth in images with a limited color palette (color quantization)

  6. Illusion of Dithering

  7. 256 color dithering with Irfan View

  8. Original Image in Detail

  9. Original image using the web-safe color palette with no dithering applied

  10. Original image using the web-safe color palette with Floyd–Steinberg dithering

  11. Original image has been reduced to a 256-color optimized palette with Floyd–Steinberg dithering

  12. Depth is reduced to a 16-color optimized palette in this image, with no dithering

  13. This image uses 16-color optimized palette with dithering

  14. Original

  15. Threshold

  16. Random

  17. Halftone

  18. Ordered (Bayer)

  19. Ordered (Void-and-cluster)

  20. HSV Color Cylinder

  21. YCrCb Sampling Format YCrCb J:a:b J: horizontal sampling reference (width of the conceptual region). Usually and in this case: 4. a: number of chrominance samples (Cr, Cb) in the first row of J pixels b: number of (additional) chrominance samples (Cr, Cb) in the second row of J pixels YCrCb (4:4:4, 4:2:2, 4:2:0, 4:1:1)

  22. YCrCb Sampling Format 4:4:4 4:2:2 4:2:0 4:1:1

More Related