Exercices about Digital Image I

 ♣ 41.- Think you want to print out a photograph with a size of DIN A4: 210 × 297 mm

maintaining a printing quality of 200 dpi. Which resolution would the image need?

Print Size=DIN A4-----------210x297mm                                    Quality 200dpi

297mm x 1 inch: 254mm= 11'7

11'7x200= 2340:1500= 1'56

♣ 42.- Which resolution would the same picture need to have a 300 dpi picture?

1200 x 1800 pixels