A Six-Color Cure For Screen-Printed Halftones, Part 1 - Theory and explanation of six-color printing process, graphics printing
Digital Halftoning - This site was first posted to advertise the halftoning research that I was doing while part of the University of Delaware's Department of Electrical Engineering. Now that I am at the University of Kentucky, we can all look forward to my long and succesful career in halftoning and printing research...
Dithering - Full-color photographs may contain an almost infinite range of color values. Dithering is the most common means of reducing the color range of images down to the 256 (or fewer) colors seen in 8-bit GIF images.
Drawing with Photoshop Halftones - This image that will be used for the cover of a bimonthly newsletter going to orthodontist, was done by converting sections of grayscale tones into line halftones.
Halftones - The basics of color and black & white halftones. Halftone images contain a series of dots in a specific pattern that simulate the look of a continuous tone image. Because printers cannot print continuous tones — whether it's the many shades of gray in a grayscale image or the millions of colors in a color photograph — you must convert these images to halftones. Another term for halftoning is dithering.
Halftone Screens - Learn about Halftones. The term Halftone Screen refers to the pattern of dots of varying sizes applied to an image of varying tones, or same sized dots applied to a tint of colour, when output to - film for the printing processes - or laser printed artwork etc..
Halftones - White Paper, Black Ink
Halftoning - To many people a printed image is indistinguishable from its photographic counterpart. That so many can be fooled is a testimony to the sophistication of modern printing technology. While a full range of tonal values can be used to generate a photographic print, printers don't have that luxury. There is no gray ink. Ink dots must be arranged and printed so that the illusion of a continuous tone is presented to the viewer.
Halftoning - The Secret Print Ingredient - Tom Arah looks at the crucial role of halftone screening in successful print.
Halftones and Resolution Basics - What Is "Resolution" and How Do I Use It?
Halftones and Line Screens - In offset lithography, the density of CMYK inks can not be varied in continuous fashion across an image, so a range is produced by means of halftoning. In halftoning, tiny translucent CMYK ink dots of variable sizes are printed in overlapping grids. As the dots get smaller, so does the shade of color that is reproduced. Grids are placed at different angles for each of the ink colors. Smaller halftone dots absorb less light; thus, as a result of an increase in the amount of reflected light, apparent density is decreased and the object appears lighter.
Linescreens - The frequency of the halftone dots - their density within a given area - is an important number. In the United States, we measure halftone screens in "lines per inch" or lpi. If the "linescreen" [a.k.a. "screen frequency"] is 100 lpi, then each square inch of a given color will contain 100x100=1,000 halftone dots. Different printing techniques and conditions require different halftone screens (note: these numbers are typical, not hard and fast)
Line Screens for Halftones, Tints and 4/Color Separations - List of Maximum Line Screens as determined by press and paper
More On Halftones: Process Color Halftones And Line Art - How does the printer or imagesetter create a halftone from a color or grayscale image?
Printing Halftones - Printing Halftones and LPI (Lines per Inch)
Scanning Line Art - Three Modes of Scanning Line Art. There are 3 modes of scanning line art: b/w or line art mode (1 bit), grayscale, halftone
Which Style Line Screen Should I Use? - Halftone photography uses a halftone screen or electronic dot generation. The original halftone screen consisted of inked lines on two sheets of optically flat glass cemented together at right angles. The lines were the same width as the spaces.
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Business Cards: Ideas and Inspiration, Part II
Today we continue looking at business cards that stand out, and here’s hoping you get some inspiration and ideas! After all, you only get one first impression, so your business card should be something that showcases the best of your design abilities. On Wednesday we looked at the use of interesting shapes, 3D business cards, [...]
Business Cards: Ideas and Inspiration, Part I
As a graphic designer, your business card should do more than let people know how to contact you. If you’re interested in truly making a good first impression, the business card has got to stand out. Whether through color, design, die cutting, unique materials, 3D shapes, or actual samples of your work, a stand-out business [...]
Collaborating and Negotiating: Part II
Today, we’re looking at the collaboration side of negotiation and collaboration in graphic design. Because your work is ultimately for the client, at times you as the designer must be willing to compromise to reach a mutually agreeable goal. Here are some tips to help you collaborate with clients. Ways to Collaborate Listen. On page 28 [...]
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