... pixels, or points of color, viewable via a monitor, paper,
or other display medium. Raster images are stored in image
files with varying formats.
LAYERS : Layers are something like sheets of clear acetate,
stacked on top of each other. Any painted area (opaque
pixels) on one layer will cover whateve ...
... Color is expressed as an RGB (red-greenblue) value--three numbers that indicate the
relative contribution of each of these three
An RGB value of (255, 255, 0) maximizes
the contribution of red and green, and
minimizes the contribution of blue, which
results in a bright yellow
... It is easier to draw pictures of things with imprecise
boundaries, (or that consist of so many parts it would
not be feasible to draw them all)
Your PC utilizes Bitmap Graphics to display everything
that appears on your screen
Ability to create multiple layers which can be overlayed
to create compos ...
... in a standard way for compliant systems
• For a particular vendor’s graphics card, we
can discover how to directly reprogram the
CRT’s Start-Address, by ‘trapping’ the I/O
instructions used in the ROM-BIOS routine
... but for a cardiothoracic surgeon, adherence to process is second nature! His palette (of primary colors red, green, blue and yellow which
are never mixed with another color, except mixing color with black and/or white), create a gamut of primary color visual hues and their
tints and shades. A grid o ...
... - Pure cyan (C), magenta (M), and yellow (Y) pigments should combine to
absorb all light and produce black. For this reason these colors are called subtractive
- Use when working on images for print: save as .tiff and use high resolution (200-600).
Indexed color mode:
– 8bit or 256 colors. U ...
... The next several pages have descriptions of the major color models and some experiments to help you visualize how
Because the RGB model is only capable of producing a certain range, or gamut, of colors, there are some colors that
cannot be reproduced accurately by a computer monitor. The ...
... • Hex value starts out with #
•Sample hex value #aaffqq
•In HTML there are 17 standard color names that can be used
instead of the Hex value, these names give us only basic colors like
Black, Blue, Red, White, Yellow, etc
•Programs like Photoshop let you pick colors using different values
like Hex, ...
... • Keep your palette simple. Four to six colors are usually plenty. Of
these, only one or two should be fully saturated. Choose a color for the
background first, and then pick a color that contrasts for highlighted
• Forget how colors affect each other. Fully saturated complementar ...
The Color Graphics Adapter (CGA), originally also called the Color/Graphics Adapter or IBM Color/Graphics Monitor Adapter, introduced in 1981, was IBM's first graphics card and first color display card for the IBM PC. For this reason, it also became that computer's first color computer display standard.The standard IBM CGA graphics card was equipped with 16 kilobytes of video memory and could be connected either to a dedicated direct-drive CRT monitor using a 4-bit digital (TTL) ""RGBI"" interface, such as the IBM 5153 color display, or to an NTSC-compatible television or composite video monitor via an RCA connector. The RCA connector provided only baseband video, so to connect the CGA card to a standard television set required a separate RF modulator.Built around the Motorola MC6845 display controller, the CGA card featured several graphics and text modes. The highest display resolution of any mode was 640×200, and the highest color depth supported was 4-bit (16 colors).