Thursday, March 10, 2011

Exercise 2- Image Basics


1. Width of the image in pixels?
2000 pixels
2. Height of the image in pixels?
1500 pixels
3. Calculate the size of the image in Megapixels?
3 Mp
4. What is the specified resolution of the image?
300 ppi
5. Width of the image in cm?
16.93 cm
6. Height of the image in cm ?
12.7 cm
Turn OFF the ‘Resample Image’ option and change the Resolution to 150 pixels/inch.
7. Width of the image in pixels?
1000 pixels
8. Height of the image in pixels?
750 pixels
9. What is the new Width in cm?
6.67 cm
10. What is the new Height in cm?
5 cm
11. What is the image size in Megapixels?
0.75 Mp

Change the resolution back to 300 pixels/inch
Turn ON the ‘Resample Image’ option and change the Resolution to 150 pixels/inch.
12. Width of the image in pixels?
500 pixels
13. Height of the image in pixels?
375 pixels
14. What is the new Width in cm?
8.47 cm
15. What is the new Height in cm?
6.35 cm
16. What is the image size in Megapixels?
3.46 Mp

Question:
Where else in Photoshop can you find the above information ? INFO PANEL / STATUS BAR :
1. My image is 2100 pixels wide and 3300 pixels high.
a. What is the image size in megapixels ?
2100 x 3300 / 1000,000 = 6.93mp
b. What would be the physical image size at a resolution of 300ppi ?
2100 = 7"
300ppi
7" x 11"

2. My image is 2000 pixels wide and 3000 pixels high.
a. What is the image size in megapixels ?
2000 x 3000 / 1000,000 = 6 MP
b. What resolution would I need to print at to create a 8” x 12” print ?
2000p. = 250 8"

3. I want to make an A4 print with a resolution of 300ppi.?
a. What is the image size in cm ? 21 x 29.7
b. What is the image size in inches ? 8.3 x 11.7
c. Rounded to the nearest inch, what would the pixel dimensions be ?
8 x 12
a. What is the image size in megapixels ?
7.9 MP

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