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Oddly enough, they're just called "dots," and are part of what's commonly known as a "halftone screen." The number of dots per inch determines the resolution of the printed halftone photo (the more dots, the sharper the picture -- 150 dpi allows for much finer detail resolution than 72 dpi). The reason this effect was required is that offset printing is not capable of reproducing shades or gradations of tone -- there's either ink on the paper or not. Reducing a continuous tone photo to a series of dots allows it to be reproduced on a printing press. Without the dot structure, the press would simply print a blotch of ink.
Traditionally the halftone was achieved by laying a reusable, semi-transparent screen of the desired frequency (number of dots per inch) over high-contrast photographic paper on an enlarger (or by a similar process on a "line camera," but that's a whole 'nother topic). Bright areas of the picture were thus translated to small dots on the paper; darker areas comprised larger dots.
Nowadays, most pre-press operations use scanners, computer graphics programs and digital output systems to produce halftones.
What else can I help you with?
What is the name of the method of communication where dots and dashes are used to represent each letter of the alphabet?
The method of communication is called Morse code. Each letter of the alphabet is represented by a unique sequence of dots and dashes.
Why are there two dots over the letter E in Noel?
The two dots over the letter E in Noel indicate that it should be pronounced as two separate syllables. This diacritic mark is called a diaeresis and is used to show that the vowels are to be pronounced individually rather than as a digraph.
What do Pink and red dots on m8 paper indicate?
Pink dots on M8 paper indicate liquid nerve agents, while red dots indicate blister agents. These are used to detect chemical warfare agents on surfaces.
Do outline maps use population dots?
Outline maps do not use population dots. An outline map indicates the boundary and the overall shape of the country. They are blank maps that let the user portray whatever information they want on it.
When you draw energy level circles why do you use dots and?
When drawing energy level circles, dots are used to represent electrons within those levels, indicating their presence and distribution. The use of dots helps visualize the arrangement of electrons according to the Pauli exclusion principle and Hund's rule, making it easier to understand the electronic configuration of an atom. Additionally, the placement of dots can illustrate concepts like bonding and reactivity in chemical interactions.
How do you write a caption on photo journalism?
Photo captions in photo journalism are important brief statements about the photo used to give visual representation to the story. To write a good photo caption attention to detail is key. The main people involved should be mentioned and facts concerning the message.
What is the name of the black and white filter used in the photo editing software?
The name of the black and white filter used in photo editing software is "grayscale."
What is the name for the punctuation mark of three dots?
The punctuation mark of three dots is called an ellipsis. It is used to indicate a pause or omission in a sentence.
What do two dots after a person's name on the Vietnam Veterans Memorial Wall mean?
Dots are used to help find a name when one is looking for a name on a large panel. Each dot marks ten lines.
What is the name of the two dots above letters?
It is called a diersis or umlaut, depending on how it's being used.
What is the name of the Corel program that is used for photo editing?
The name of the Corel program that is used in photo editing is called Corel Draw or Corel Paintshop. Some other photo editing programs are: ACD Systems, Adobe Photoshop Lightroom 4, Apple Apeture 3.
Why are dots on dice called pips?
"Pip" is a very old word. It was reportedly used as early as 1604. The word "pip" can be used as either a noun or a verb. The word "pips", as it relates to dice, is an alternative name for the the colored spots or dots used to identify the die value. The same name is used for the dots found on dominoes. Pips (or dots) were used on early playing cards to signify a specific suit and value. It stands to reason, albeit speculation, that the term "pips" originated on playing cards and has since been adopted to describe the value on a die.
This name is given to socially conscious journalism that battled corruption in all its forms?
Investigative journalism is the term used to describe socially conscious journalism that aims to uncover corruption in all its forms, whether it be in government, business, or other institutions. Investigative journalists dig deep to expose wrongdoing, hold the powerful accountable, and shed light on important issues for the public.
Why are polka dots called polka dots?
The term "polka dots" is believed to have originated from the dance called the polka, which was popular in the mid-19th century. The pattern was associated with the lively and energetic dance, leading to the term "polka dots" being used to describe the pattern itself.
Name two input device used to send photo by email?
scannerdigital camera
In 1898 newspapers used senstional coverage to sell newspapers what was this know as?
In the USA, 'yellow journalism', in the UK, 'New Journalism'
Is yellow journalism used today?
yes it is. yes it is.
