"graphical image" is correct and usable in written English.
You could use this phrase to describe a picture, for example, "This graphical image illustrates the process of how a car engine works."
The signal for a graphical image can be thought of as a three-dimensional signal.
The diodes generate a pattern of binary digits that are stored in the computer as a graphical image.
In addition, the courseware provided attractive, clear and suitable graphical image, which helps the respondents to understand the topic.
The evaluation is done by using a questionnaire, which is based on four multimedia elements: text, interactivity, animation and graphical image.
If anything, what is causing the most fear in our country is a mere image — the graphical image of that up-and-down stock-market line graph, careening over time to new lows and temporary highs.
The cover superimposes a graphical image of the World Trade Center's twin towers -- one made from dollar signs, the other from digital ones and zeros -- against a cloud-filled sky.
Graphical images of the docking poses and molecular maps of the pocket surfaces were generated in MOE.
In particular, i am interested in interesting graphical images that are a result of the astronomical work done at CAL.
In addition to main memory, computers generally have special video memory (VRAM) to hold graphical images, called bitmaps, for the computer display.
The new technology will be better able to handle video or graphical images with hundreds of pixels, a welcome relief for anyone who has tried to edit video on a desktop computer or watch streaming images over the Internet.
One standard benchmark for the rendering of computer models into graphical images is the Utah Teapot, created at the University of Utah in 1975.
