First off, you need to have a picture editing program. If you don't have one, I will suggest GIMP . That is a powerful program at a great deal (FREE) (:D). The term used in GIMP is image size, and enter 50x150, wait a few seconds, and viola!! you are resized. I have Adobe CS-5, and using the "Alt+Ctrl+I" I can resize... I forget what tab its under (:s) sorry. Hope this helps!
To determine the number of pixels in a picture, you can multiply the width of the picture in pixels by the height of the picture in pixels. This will give you the total number of pixels in the image.
The size of any picture in pixels depends on how the picture is taken. You can take the picture to have as many or as few pixels as you want.
it determines the resolution of the picture. the higher the pixels, the clearer the picture.
The image resolution of a picture is broken into pixels. The amount of pixels in the picture depends on the size of the print. There are approximately 100 pixels per inch in a picture.
The number of pixels in a 4x6 picture depends on the resolution (DPI - dots per inch) used. For example, at a resolution of 300 DPI, a 4x6 picture would be 1200x1800 pixels, resulting in a total of 2.16 million pixels. At 72 DPI, it would be 288x432 pixels, totaling about 124,416 pixels.
To increase the number of pixels in a picture, you can use photo editing software to resize or upscale the image. This process involves adding more pixels to the existing image, which can improve the overall quality and resolution of the picture.
For a picture to be used as an iOS wallpaper, it must be at least 1136 x 640 pixels.
You can scale an image to make it larger or smaller, but you can't create pixels out of nothing; if you scale it to have fewer pixels, then you're losing detail, and if you scale it to have more pixels, then you have to guess at the value of the new pixels by averaging nearby pixels. Both of these tend to make the picture look more blurry.
detecting the smile in the picture by making the picture into a clarity picture. i.e. by boosting of pixels(decreasing the space between pixels of an image)
The picture will become finer. Your picture is made up of dots called pixels. Pixels are created from resolution for example 640x480=XXXX amounts of pixels. So when you create more pixels by increasing the resolution to say 1024x768=xxxxx amounts of pixels you increase the pixels amount and finess of the image.
The number of pixels does matter to an extent as to the picture quality.
For the most part, yes. The more pixels a camera has, the clearer the picture will be. However the clearer a picture is, the larger each picture is in size, therefor the more space it takes up on a card or the camera memory.