The structure of the layers in the program Adobe Photoshop? part of the basic tools, enabling the designer to work with a flat digital image as the system of independent graphics superimposed on each other, and constitute a single composition.
Create a new layer for each image processing increases flexibility, allows the implementation of many operations for retouching, color correction, imposition of effects, etc.
program is a system of layerslikeness taken from the real life of the stack of flat images, as if you were a collage of cut from a paper illustrations and pieces of colored paper, laid them on the table one on top of another? have some overlap, some were partially visible, some sticking to the working surface outside. If illustrations material would be translucent, it would have seen through the lies from the bottom, etc. Adobe Photoshop program works implemented in a similar way, only the images and carved figures? digital.
photoshop software layers may be of several types.
Firstly, it can be, in fact, digital raster image? fragments of photographs, drawings, etc.
Secondly, this layer can be generated by the program? monochrome and colorful geometric shapes, primitive, lines, letters, etc.
Thirdly, it may be layers having noown image, but performing official functions? As a rule it is layers, adjusting color, brightness, etc. parameters under them below pictures.
The list of layers, as a rule, there is one speciallayer? it is designated or named Background The background? has significant limitations compared to other layers: it has a size of rigidly tied to the working size of the composition, it can not be moved from its place, and does not have the transparency / Being at the same time, on the very last line in the list of layers, by default it is basis total composition, all other layers located above this background layer. When you first open any digital image in Photoshop program, it represents the minimum composition? ie consists of a single layer having a Background type.
All other layers generated during operation can be more free parameters and used more flexibly.
- First of all, they can be of any size? their height and width can be as small as the working area of your composition, and more than he did, in the latter case, of course, the edges of these layers will be hidden beyond the picture.
- Secondly, each layer may have one offreely selectable blending modes? that is, you can specify how it will interact with lying underneath the image. This is primarily the total degree of its transparency, controlled by a separate parameter. As well as the mathematical algorithm, according to which will be determined by the interaction? it can darken or lighten the image subject, affect its shady areas, or to be visible only in the light areas, affect the color, saturation, etc.
- Thirdly, each layer may have a masktransparency. Mask? This raster map, which has the same geometric dimensions as the layer to which it relates. Its color of each pixel can range from black to white, which accordingly makes image information layer in this area visible, invisible or translucent. That is, for example, you have a rectangular picture, but you need to be visible only a portion of it in the form of an oval, beyond which the layer should be invisible. To achieve this you can in the right place on the layer mask to portray the white oval, then the edges of the layer will be transparent, and the picture will be visible inside the oval.
Since the fiber type Background, as mentionedabove may not change either its transparency or its geometric dimensions, most often, the most essential operation? is to get rid of these restrictions, ie, the creation of a layer of high-grade layer Background.
To do this, open the program Adobe Photoshoppicture. Making visible the panel with the list of layers (F7 on your keyboard or select Window & gt-Layers menu). We see that the list includes only one layer of the Background (Background) by placing the mouse in the context menu (in Windows? It left mouse button) find the item Layer from Background (Layer from Background). Also, this command can be found in Layer & gt-New & gt- Layer from Background menu.
Now, this layer can be moved, stretch? increase and decrease in size, relative to the field composition? erase, remove or mask the unwanted areas, etc. in it
You can duplicate the layer, sometimes it is necessary toediting operations, when some parts need to be modified, but the original image in any case must remain intact. Then, by selecting from the list of layers desired layer, we find in the main menu Layer & gt-New & gt- Layer via Copy (by copying layer). In the Layers panel you can do this by simply dragging the mouse to the desired place on the layer icon with an icon? Clean slate? the bottom panel.
On a separate layer, you can not duplicate allsource layer and any portion thereof. This can make it first selection? tools from the kit Lasso, Marquee, Quick Selection, etc. In this case, when you select Layer via Copy to a new layer will be copied only a fragment of the original.
If you need a clean layer, you can itcreate menu Layer & gt-New & gt- Layer, or by clicking on the icon with a? clean sheet? at the bottom of the Layers panel. On it you can do something, for example, to draw using fotshopa brush.
For any image inserted into the composition via the clipboard, a unique new layer will be automatically created.
When creating geometric primitives or inscriptions Photoshop tools, for each of the created object will also be automatically generated its own layer.
Adjustment layers, wherebyoperations are performed color correction, you can create a menu Layer & gt-New Adjustment Layer, or found at the bottom of the Layers panel icon with a split into two black-and-white circle. Then you have the opportunity to choose one type of adjustment layer. Such layers will be created. Recall that if before the operation to create a new layer on the image there is a selection? and it is the presence of flickering dotted lines along the contours of isolation,? then created layer will inherit this selection as a mask. Thus, for example, the color correction operation with a new layer is not produced over the whole image, but only over the selected part, i.e. where the mask layer allow it to be opaque.