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Old Jan 8, 2007, 6:55 AM   #1
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Whenever I edit my pictures in Photoshop the pictures are 39.111 inches x 29.333 inches at only 72 dpi.

It there a way to increase the resolution to 150 dpi - 300 dpi? (even if the pictures becomes smaller)

Here are my Camera settings: (OPTIO S60)

Recorded Pixels :2816
Quality Level:***
White Balance:AWB
Focusing Area:Multi
Sensitivity:Auto
Frame Rate :30 fps
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Old Jan 8, 2007, 9:32 AM   #2
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Resize

Change the ppi settings to 300

Make sure you are not resampling as that will add false pixels.

By the way you don't strictly need to bother.

If you where to print at a smaller size the printer driver will automatically divide the total pixels out automatically increasing the ppi.

The current dpi/ppi is only a number by itself it means and does nothing.

The final print size determines the ppi..
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Old Jan 8, 2007, 9:44 AM   #3
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I tried that in Photoshop and the picture was grainy even after some editing.

What I meant was camera settings. Is there a setting in the camera to allow me to take 150 dpi - 300 dpi pictures automatically?
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Old Jan 8, 2007, 10:04 PM   #4
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No.

You don't seem to understand.

The pictures you take are composed of pixels.

The highest resolution of your camera is 2816 x 2112 pixels

The dpi/ppi your camera sets, does nothing to those pixels.

All it does is set a flag and photoshop shows what size you could get if you printed at 72ppi

If the camera manufacturer had set the camera to change the flag to 300ppi then the picture would have exactly the same number of pixels and exactly the same quality.

All the change to 300ppi would do would tell photoshop to show you the print size of the photo as

2816 / 300 = 9.34inches by 2112/300 = 7.04 inches..

In other words, take you picture set at 72ppi and print a 6x4, photoshop or the printer driver divides the pixels out over the 6x4 inches.

The 72ppi is ignored, the actual ppi for this print would be 469.33ppi

Take the same pic set at 300ppi and print a 6x4, photoshop or the printer driver divides the pixels out over the 6x4 inches.

The 300ppi is ignored, the actual ppi for the print would be 469.33ppi

So the thing to understand is this.

The preset ppi the camera adds to an image, does nothing and means nothing. Photoshop and other image editors needs a value to go in the box, the manufacturer is free to pick any value he wants to use, 72 is just a typical value many use.

Whenever you tell your application to print, then ppi is calculated and is important, until then all you have is a number of pixels..


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Old Jan 11, 2007, 5:26 AM   #5
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Thank you.That explaination has really helped a lot.




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