You can change the image size by resizing or cropping, or by printing at a different size.
Reducing the canvas size is not always the same as cropping an image. For images with layers, reducing the canvas size does not delete the pixels outside the new canvas area — it just shows less of the layer
Pixels have no set physical size. Each pixel represents one sample of a single color. When an image is resized, the number of pixels in the image may be reduced or increased, which causes the image to be resampled. Resampling changes the file size.
Print resolution is defined as the number of pixels per inch (ppi). A higher print resolution creates smaller printed pixels and therefore a smaller printed image. A lower print resolution creates larger printed pixels and a larger printed image. Resizing can be used to:
- Change the print resolution and print size while preserving the number of pixels and file size (no resampling)
- Change the number of pixels and file size while preserving the print resolution and print size (resampling)
- Do both (resampling)
Here are some recommendations to help you resize your images:
- Avoid increasing the image size by more than 125%. Doing so may cause a loss of detail and sharpness.
- Resize an image only once. If you resize the image incorrectly, undo it and try again.
- Correct and retouch images before resizing.
For most simple corrections and retouching, you do not have to add layers to an image. However, it is a good practice to duplicate the single layer before making image corrections, so that you preserve the original image on its own layer. If you intend to do more complex work — such as adding elements to the image, creating photo compositions, adding text, or applying other effects — the use of layers is highly recommended.
Each layer you add begins as a transparent sheet over the background. As you add brush strokes, vector objects, or text, you cover up parts of the Background layer. Transparent areas allow you to see the underlying layers. You can stack multiple layers to create artistic compositions, photo collages, or complex illustrations.
There are nine types of layers: Background, Raster, Vector, Art Media, Mask, Adjustment, Group, Selection, and Floating Selection. For information about the last three types, see "Working with selections.
1. Background layers
The background layer is the bottom layer of an image. When you import JPEG, GIF, or PNG images into Corel Paint Shop Pro Photo, they have only this single layer, which is named “Background” on the Layers palette.
The background layer contains raster data, but it cannot display transparency. You cannot change its blend mode, opacity, or order in the stack until you promote it to a raster layer.
To position a background layer higher in the layer stack, you can promote it to a regular raster layer. For information about promoting the background layer, see "Promoting the background layer."
If you create a new image with a transparent background, it does not have a background layer, and its bottom layer is a raster layer named “Raster Layer 1.” You can move this layer anywhere within the stacking order. You can also change its opacity and blend mode.
Corel Paint Shop Pro Photo supports transparency on layers other than the background. To create an image without transparent areas, you can choose a solid-colored background. The image contains a background layer as the bottom layer.
2. Raster layers
Raster layers are layers with raster data only. Raster data is composed of individual elements, called pixels, arranged in a grid. Each pixel has a specific location and color. Photographic images are composed of raster data. If you magnify raster data, you can see the individual pixels as squares of colors.
Raster layers let you display subtle changes in tones and colors. Some tools, options, and commands apply only to raster layers. For example, the painting tools and the commands that are used to add effects can be applied only on raster layers. If you try to use a raster tool while a vector layer is selected, Corel Paint Shop Pro Photo prompts you to convert the vector layer into a raster layer.
Only grayscale and 16 million–color images can have multiple raster layers. When you add a new adjustment layer or raster layer to an image of another color depth, Corel Paint Shop Pro Photo prompts you to convert it to 16 million colors.
For more information about raster and vector data, see "Understanding raster and vector objects."
3. Vector layers
Vector layers are layers with only vector objects (lines and shapes), vector text, or vector groups. Vector objects and text are composed of geometric characteristics — lines, curves, and their locations. When you edit vector objects and text, you edit these lines and curves, rather than the individual pixels. Vector graphics and vector text maintain their clarity and detail at any size or print resolution.
Objects or text created with vector layers can be easily edited. Images of any color depth can include multiple vector layers. Each vector layer contains a list of all individual vector objects on that layer. You can expand or collapse the group to view the individual objects. For more information, see "To expand or collapse a vector layer or layer group." Vector objects can be moved from their layer group to another vector group.
You cannot move a vector object to a nonvector layer; vector objects must be placed on vector layers. If you create a vector object while a raster layer is selected, Corel Paint Shop Pro Photo creates a vector layer just above the selected layer.
For more information about raster and vector data, see "Understanding raster and vector objects."
4. Art Media layers
Art Media layers are automatically created when you use any of the Art Media tools.
When creating a new image, you can choose to create the image with an Art Media layer.
Art Media layers can be converted to raster layers, but not to vector layers.
5. Mask layers
Mask layers show or hide portions of underlying layers. A mask is an adjustment layer that modifies opacity. You can use masks to create sophisticated effects, such as a picture frame that fades away at the center to reveal the subject.
Mask layers cannot be bottom layers. You cannot delete other layers if deleting them would cause a mask layer to become the bottom layer.
For more information about working with masks, see "Working with masks."
6. Adjustment layers
Adjustment layers are correction layers that adjust the color or tone of underlying layers. Each adjustment layer makes the same correction as an equivalent command on the Adjust menu, but unlike the command, the adjustment layer does not change image pixels.
Adjustment layers cannot be the bottom layer. You cannot delete other layers if deleting them would cause an adjustment layer to become the bottom layer. For more information, see "Using adjustment layers."
Management: the act of managing something
Change management: change management is a structured approach to shifting/transitioning individuals, teams, and organizations from a current state to a desired future state. It is an organizational process aimed at helping employees to accept and embrace changes in their current business environment. Change management's goals are to minimize the change impacts on workers and avoid distractions.
Digital animation vs. traditional animation drawn on sheets of acetate
Three file formats that can be used to deliver animation.
Uses of multimedia are to enhance communication, provide training or entertainment (e.g gaming).
Applications of multimedia are in marketing , product training, product demonstration, advertising engineering education and simulation, medicine education, journalism, catalogs, databases and networked communications
Glossary of terms
Typographic term
Team effectiveness
persistence of vision
References
Wikipedia, http://en.wikipedia.org/wiki/Change_Management
Corel Paint Shop Pro XI Help Document
No comments:
Post a Comment