What do you know about these Photoshop terms?

What do you know about Photoshop's terminology? For some Photoshop beginners, in the process of learning PS, often encounter some difficult to understand the terminology, but these are as digital photo post-processing some must be memorized and proficient in the application of content. Here's a brief explanation of some of the most common and difficult terms for PS.

Pixel: The pixel is the most basic element that makes up the image, it is actually a separate small square, each pixel can record its location and color information.

Pixel points

Selections: Also called selection range, is the scope of PS to edit the image, any edits are not valid outside the selection. When the selection is not established on the image, it is the equivalent of all selections.

Constituency

Feather: Softens the edges of the selection, and its editing of the image produces a transition to the boundaries of the selection. With a range of 0-250 and a valid pixel less than 50% in the selected area, the boundary line of the selection is no longer displayed on the image.

Different feather values

Anti-aliasing: When editing an image, PS automatically replenishment the pixels on its edge, making the transition between adjacent pixel points on the edge softer. In PS, mainly for the establishment of the selection area.

Effect of selection fill

Tolerance: The color range between pixels on the image, the larger the tolerance, the larger the same range as the selected pixel point, the value is 0-255.

Different tolerance values

Blending mode: A color is called a blending mode, which is called a blend pattern, and is called a blending model, which is used to apply a colour to another color according to a particular blending rule. There are 6 groups of 22 blending modes in PS.

Original

Different blending modes

Flow: Control brush effect on the image of color concentration, the greater the flow of the color depth of the more strong, the value of 0%-100%.

Different flow control

Style: Custom-styled editing of an active layer or selection, similar to an action.

Results of different styles

Go to the net: to scan the file to remove it because of the screen produced by the printing screen, resulting in a more exquisite image. Note that any scanned files will not be able to reach the net after

Quality of original printed manuscript

After scanning the file, in its gray surface can be very clear to see the mesh (small dots on the image).

The effect after going to the net

Because the manuscript image quality is not very good, the effect after the net processing is general. The detailed method of going to the net see "several commonly used scanning file to go to the net method".

Resolution: The number of pixel points within the unit length (usually an inch). For different output requirements, the resolution is not the same size, such as the common screen resolution of 72 pixels per inch, and ordinary printing resolution of 300 pixels/inch.

File format: In order to meet different output requirements, the storage mode for the file, and according to a certain specification of the image of various information and quality to make trade-offs, it is equivalent to the image of various information entity description.

Common file formats

Slices: In order to speed up the browsing speed of the Web page, without losing the image quality, the slice tool is used to divide the picture into chunks, so that the loading speed is faster when the page is opened. The following figure, each square is a slice, can be divided into pieces of output.

Input: A method of obtaining an image or a special pair of images in other ways. such as scanning, annotation and so on.

Output: Converts images into other file formats to achieve the purpose of file exchange between different software, or to meet the requirements of other outputs.

Batch processing: Causes multiple files to perform the same editing process (action).

Color mode: The image of the pixel in accordance with a certain rule of the method, called the color model. Different output needs of the image has a different color mode. Commonly used color patterns such as RGB, CMYK, lab and so on.

Layers: In order to facilitate the editing of the image, the parts of the image are independent, and any part of the editing operation has no effect on the other parts.

Masks: The mask is used to protect any area of the image from editing and will manipulate its editing action to the layer it is on.

Channel: The channel is a complete record of the various monochrome color information and ink intensity, and can store various selection areas, control the process of opacity.

Bitmap images: Bitmaps are also called raster graphs, which are made up of pixel points, each with a separate position and color attribute. Image quality decreases when you increase the physical pixel of the image.

Vector graphics: By the vector line and curve composition, in its amplification, rotation and other editing will not cause loss of image quality, such as other software created AI, CDR, EPS files.

Filters: Using the principle of optical filter in photography to perform special effects on the image editing. Although it is derived from the filter, but in the PS of its function to the extent that the filter can not match, making it the most magical part of PS. There are 13 major classes in PS (excluding Digmarc filters), with nearly hundreds of built-in filters.

Color Gamut Warning: The color that cannot be printed correctly by the printer is prompted with a gray mask. Applies to RGB and lab color modes.

The image above is an RGB image, the gray mask of the right figure is more than the color of the printer color printing range, if you still print in this mode, you will be printing with a similar color to replace this part of the color.

OK, so many professional terms, do not know how many you remember? These are some of the things that must be memorized and expertly applied as digital photo post-processing.

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