Understanding Image Resolution - EVHS ART- HEWETT
Name:___________________________________________ Period:_____ Score: ____/21points Resolution, PART 1What are the dots digital images are made up of called? _____________________________How close the dots are in a picture is referred to as the____________________________ (DPI) of the image or the image resolution. High resolution images have the dots ________________ together.Low resolution images have the dots ________________________.You always have the same amount of total pixels, but depending on how you spread them out will affect your __________________________.Look at the image of the flower at the bottom of the page. What resolution is good for printing? __________________ and what resolution is right for viewing on a website? _______________Look at the caption box “Which Is Bigger”. Which of the two images has a higher resolution? _______________________. Why? ____________________________________________Resolution is very important because it determines the quality of the image. What two specifications will you see listed on a camera model as a selling factor? _____________________________ and ______________________________ Having images with high resolutions and more pixels isn’t always the best option. Why would you want a lower resolution image? ______________________________________________On the other hand, more pixels give you more possibilities such as _______________ prints and more room to improve the ___________________with cropping. Resolution, PART 2Why wouldn’t you want an image for the web to be much larger than 72dpi? ____________________________________________________________________If you generate a photo-quality print on an inkjet printer, you will want a much higher resolution, even up to __________ dpi. We use digital imaging software such as _____________________ to change the resolution of an image. Software allows you to move around the dots, but they don’t allow you turn 50 dots into 500 dots. If you do this, what happens to the image? ___________________________________________________________________________To be on the safe side, create your image to be the largest size you’ll need. In this class, your teacher recommends we use 8.5 in x 11 in at ______________ dpi. In the box “It’s How Big?”, it tells you how to multiply the dimensions of an image to determine the pixel dimensions. If you have an image that is 8 in x 10 in at 300 ppi, what will the pixel dimensions of the image be? _________________x ____________________The same image above, would be what size if it needed to be 600 dpi? ______in x ______in ................
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