| A | B |
|---|
| Resolution | Refers to the number of pixels in an image. |
| Pixels | Small squares |
| Resolution Determination | Pixel dimensions or the # of pixels along c the width and height of an image. |
| Image Resolution | Number of pixels per unit of length in an image (ppi). |
| Monitor Resolution | Number of pixels per unit of length on a monitor (ppi). |
| Printer or Output Resolution | The number of ink dots per inch (dpi) produced. |
| Halftone Screens | 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 color, when output to - film for the printing processes - or laser printed artwork etc |
| RGB | Red, Green, Blue-used on monitor |
| CMYK | Cyan, Magenta, Yellow, Black-used for printer |
| Auto Color Command | Adjusts the contrast and color of an image the actual image rather than the channel histogram for shadows, midtones, and highlights. |
| Histogram | A statistical graph of a frequency distribution in which vertical rectangles of different heights are proportionate to corresponding frequencies |
| Contrast | Highlights and shadows |
| Auto Contrast | Maps the darkest and lightest pixels in the image to black and white - this remapping cause the highlight to appear darker and can improve the pictures appearance. |
| Luminosity | Brilliance, radiance, brightness |
| Color Casts | Imbalanced Colors |
| Enhancing a Picture’s Midtones | Brings the colors to life |
| Tonal Range | Represents the amount of contrast, or detail in the image and is determined by the image's distribution of pixels, ranging from the darkest (black) to the lightest (white). |
| Gamma | Shadows, highlights, and midtones. |
| Flat color | Is an area of color painted in a uniform or identical tone and hue. |
| Hue | The actual color of something, such as red, green, or blue, or the name we give a color. What we generally, but less technically correct, call color. |
| Tone or Value | The lightness or darkness of a color, rather than what the actual color is (e.g. cadmium red or Prussian blue). |
| Saturation | Strength and purity of the color - flow determines the intensity of the saturation effect. |
| Lightness | How much black or white is in the image. |
| Shadows | A darkened shape on a surface that falls behind somebody or something blocking the light. |
| Source | Area to be fixed. |
| Destination | Area used to do the fixing. |
| Unsharp Mask Filter | Adjusts the contrast of the edge detail and generates the illusion of a more focused image. |
| Tolerance Wand | Selects sensitivity; the default tolerance value of 32 selects the color picked plus 32 lighter and 32 darker tones the color. |
| Anti-Aliasing | Smoothes the jagged edges of a selection by softening the color transition between edge pixels and background pixels. Since only the edge pixels change, no detail is lost. |
| Feathering | Blurs edges by building a transition between the selection and its surrounding pixels - can cause loss of detail at the edge of the selection. |
