That is best done is photo software, such as Photoshop or GIMP. You can set your particular image size. In your camera, you should use the max settings, since that image is basically your "negative."
A:
You can do many tricks with digital images but the one thing you can't do is add resolution to a photograph after it has been taken. This is the main thing you have to make sure is right beforeyou take the next photograph with your digital camera.
example:
Print size: 6" x 4" or 7" x 5"
Digital image: 1800 x 1200 to 2100 x 1500 (2.2 mega-pixels to 3.2 mega-pixels)
You can use a variety of tools, from simple image editors (like the classy MS Paint) to dedicated image converters. Free or commercial tools.
I suggest giving AZImage a look (see reference) - it is a simple image converter supporting also advanced options if you decide to fine tune the results.
divide size in pixels with size in inches for width or height of photo and you will get resolution
Hopefully your camera has a setting to adjust your picture quality or resolution. If not, you will have to use image editing software to correct the pictures.
The larger the resolution, the larger the file size. When you compress a photo, chances are you are going to lose a lot of information from the photo that degrades picture quality.
Reduce the resolution.
To convert high resolution photos to a lower resolution:Open the photo for display.Right mouse click on photo. (I have my photo editor set as the standard Microsoft Office Picture Manager, but many other photo display programs also work.)Select edit.Select Re-size, choose desired size, saveFile Save as...
Unfortunately, it is impossible to "add resolution" to a low resolution image to get a high quality high resolution image. You might get slightly better results by making sure the bigger size is some multiple (2 or 3 times as big, for example) of the original size, but there is not very much that can be done.
Using a photo editor, reduce both the size and resolution. A web-ready photo does not need to be at highest resolution; it should also be under 50k in size. There are many free photo editors online, plus Windows might come with a free editor.
As usual, Image > Image Size but pay attention on image resolution.
The higher the pixels the higher the quality so the larger the photo will be to accommodate the high resolution
The higher the pixels the higher the quality so the larger the photo will be to accommodate the high resolution
Stamp Size Photo Size(Dimensions) in cm: 2cm x 2.5cm Stamp Size Photo Size(Dimensions) in Pixels: 236 x 295 pixels Stamp Size Photo Size(Dimensions) in Inches: 0.787402 inches x 0.984252 inches Stamp Size Photo Size(Dimensions) in mm: 20mm x 25mm Stamp Size Photo Resolution: 236 x 295 pixels (290 dpi)
The largest digital frame available is 32". This size digital frame can be purchased at several leading digital frame online retailers.