Image size -Pixel Aspect Ratio

Image size

1. Choose Image> image size.
2. make sure that resample image is selected. And choose an interpolation method.
3. to maintain the current proportions of pixel width to pixel height. Select constrain proportions.
4. under pixel dimensions. Enter values for with and height to enter value as percentage the image appears at the top of the dimension and resample the images.

Pixel Aspect Ratio

In the now fle dialog box window the preset file size in the preset menu crates image at size and pixel aspect ratio when incorporated into video. Using the preset file sizes. We can produce images for specific video systems nets, pal or hdtv an image is made up of pixels that are square. an image displayed on a video monitor is analog and does not involve pixel shape. No square pixels are the most commonly use by encoding devices for video. When immuring an image read by a square pixel graphics program, in to video editing program the squared pixels are scaled to the no square piles for video encoding the scaling results in a distorted image.