What is Computer Graphics?
The term computer graphics includes almost everything on computers that is not text or sound. Today almost every computer can do some graphics, and people have even come to expect to control their computer through icons and pictures rather than just by typing.
Here in our lab at the Program of Computer Graphics, we think of computer graphics as drawing pictures on computers, also called rendering. The pictures can be photographs, drawings, movies, or simulations -- pictures of things which do not yet exist and maybe could never exist. Or they may be pictures from places we cannot see directly, such as medical images from inside your body.
We spend much of our time improving the way computer pictures can simulate real world scenes. We want images on computers to not just look more realistic, but also to BE more realistic in their colors, the way objects and rooms are lighted, and the way different materials appear. We call this work "realistic image synthesis", and the following series of pictures will show some of our techniques in stages from very simple pictures through very realistic ones.
3d Extrusion , Mobile Integration ,Camera Raw ,3D printing Tools ,Color Replacement Tool In Adobe Photoshop
3D extrusion
With
the Extended version of Photoshop CS5, 2D elements of an artwork can easily
become three-dimensional with the click of a button. Extrusions of texts, an
available library of materials for three-dimensional, and even wrapping
two-dimensional images around 3D geometry.[35]
Mobile integration
Third-party plugins
have also been added to the most recent version of Photoshop where technologies
such as the iPad have integrated the software with different types of
applications. Applications like the Adobe Eazel
painting app allows the user to easily create paintings with their fingertips and
use an array of different paint from dry to wet in order to create rich color
blending.[36]
Camera Raw
With
the Camera Raw plug-in, raw images
can be processed without the use of Adobe
Photoshop Lightroom, along with other image file
formats such as JPEGs, TIFFs, or PNGs. The
plug-in allows users to remove noise without the side-effect of
over-sharpening, add grain, and even perform post-crop vignetting.
3D printing tools
Requiring
Photoshop version 14.1 or later, users can create and edit designs for 3D printing. After downloading 3D photo models from numerous online
services, users can add color, adjust the shape or rotate the angles. Artists
can also design 3D models from scratch
Color replacement tool
The
Color Replacement Tool allows you to change the color, while maintaining the
highlights and shadows of the original image, of pieces of the image. By
selecting Brushs and right clicking, the Color Replacement Tool is the third
option down. What is important to note with this tool is the foreground color.
The foreground color is what will be applied when painting along the chosen
part of the image with the Color Replacement Tool.
Video Editing in Adobe Photoshop cc
Video editing
In Adobe CS5
Extended edition, video editing is comprehensive and efficient with a broad
compatibility of video file formats such as MOV, AVI, MPEG-4,
and FLV formats and easy workflow. Using simple combination of
keys video layers can easily be modified, with other features such as adding
text and the creation of animations using single images.[35]
Eraser Tool in Adobe Photoshop
Eraser
The Eraser tool
erases content based on the active layer. If the user is on the text layer,
then any text across which the tool is dragged will be erased. The eraser will
convert the pixels to transparent, unless the background layer is selected. The
size and style of the eraser can be selected in the options bar. This tool is
unique in that it can take the form of the paintbrush and pencil tools. In
addition to the straight eraser tool, there are two more available options –
background eraser and magic eraser. The background eraserdeletes
any part of the image that is on the edge of an object. This tool is often used
to extract objects from the background. The magic eraser tool
deletes based on similar colored pixels. It is very similar to the magic
wand tool. This tool is ideal for deleting areas with the same color
or tone that contrasts with the rest of the image.[34]
Magic wand Tool In Adobe Photoshop cc
Magic wand
The magic
wand tool selects areas based on pixels of similar values. One click
will select all neighboring pixels of similar value within a tolerance level
set by the user. If theeyedropper tool is selected in the options
bar, then the magic wand can determine the value needed to evaluate the pixels;
this is based on the sample size setting in theeyedropper tool.
This tool is inferior to the quick selection tool which works much the same but
with much better results and more intuitive controls. The user must decide what
settings to use or if the image is right for this tool.[33]
Lasso Tool in Adobe Photoshop cc
Lasso
The lasso tool
is similar to the "marquee" tool, however, the user can make a custom
selection by drawing it freehand.[25] There are three options for the "lasso" tool
– regular, polygonal, and magnetic. The regular "lasso" tool allows
the user to have drawing capabilities. Photoshop will complete the selection
once the mouse button is released. The user may also complete the selection by
connecting the end point to the starting point. The "marching ants"
will indicate if a selection has been made. The "polygonal lasso"
tool will draw only straight lines, which makes it an ideal choice for images
with many straight lines. Unlike the regular "lasso" tool, the user
must continually click around the image to outline the shape. To complete the
selection, the user must connect the end point to the starting point just like
the regular lasso tool. "Magnetic lasso" tool is considered the smart
tool. It can do the same as the other two, but it can also detect the edges of
an image once the user selects a starting point. It detects by examining the
color pixels as the cursor move over the desired area. A pixel is the smallest
element in an image. Closing the selection is the same as the other two, which
should also should display the "marching ants" once the selection has
been closed.[31]
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