Is any blue pencil non-photo?
Perfect for cartoonists, artists and illustrators, these non-photo blue pencils can be used to sketch outlines for projects where the lines need to disappear when photocopied.
What is non-photo blue lead?
Non-photo blue pigment is designed for reduced detection by cameras and copiers – perfect for drafting and drawing sketch lines. 2mm leads create precise marks. Durable and strong cores for reduced cracking. Formulated for a smooth laydown.
What are non-photo blue pencils used for?
Non-photo blue (or non-repro blue) is a common tool used in the graphic design and print industry. It is a particular shade of blue that can not be detected by Graphic Arts Cameras or copiers. This allows artists to lay down sketch lines without the need to erase after inking.
How do I scan non blue pictures?
An easy way to remove non-photo blue in Photoshop is with a Hue/Saturation shift. Scan the image in full color. Then convert the image to CMYK in the Image drop down menu, then mode, then CMYK. Then in Photoshop press Ctrl+U.
Why do comic artists use blue pencil?
Due to the nature of the material, they smudge far, far less than a graphite pencil. This is really useful for animators who tend to “find” motion in their sketches and end up with very dense forms — especially when the drawings are passed to clean-up artists!
Do scanners pick up blue pencil?
Modern scanners, cameras, and digital editors pick up the non-photo blue pencil marks that earlier scanners did not. However, this color is still easily removed from the scanned image by switching to grey scale and altering the brightness and contrast.
What is non photogenic?
This may also provide an explanation for why many individuals think they are not photogenic: when people see their photographs—an unmodified view—they compare it to their memorized face, and the resulting incongruence is attributed to a poor photograph or being “not photogenic.”
Can you erase Crayola colored pencils?
It is true that colored pencils are hard to erase! In most cases it is usually impossible to erase down to the pure white (or whatever color) of the paper. At best, you will be able to lighten the mistake enough that you can color over it.
What is a non-photo blue?
Jump to navigation Jump to search. Non-photo blue (or non-repro blue) is a common tool used in the graphic design and print industry.
What is a copy of a non-photo blue pencil?
(1) Colour copy of non-photo blue pencil. (2) Colour copy of blue pen. (3) Grayscale copy of non-photo blue pencil. (4) Grayscale copy of blue pen. Non-photo blue (or non-repro blue) is a common tool in the graphic design and print industry, being a particular shade of blue that cannot be detected by graphic arts camera film.
What is the difference between black ink and non-photo blue ink?
The difference between the non-photo blue and black ink is great enough that digital image manipulation can separate the two easily. If a black-and-white bitmap setting is scanned in, the exposure or threshold number can be set high enough to detect the black ink or dark images being scanned, but low enough to leave out the non-photo blue.
What is the threshold for blue light on a digital camera?
On a threshold scale of 0–255, this number would be approximately 140. Only with a considerably high threshold setting will the blue be detected; this however may greatly distort black lines and add a lot of noise and black speckles, making the image potentially almost unrecognizable.