B = imresize (A,scale) returns image B that is scale times the size of image A The input image A can be a grayscale, RGB, binary, or categorical image If A has more than two dimensions, then imresize only resizes the first two dimensions If scale is between 0 and 1, then B is smaller than A If scale is greater than 1, then B is larger than ABelow are thumbnails of each The dimensions of the original image are 768 x 512 pixels Since each pixel requires 3 bytes of information, we can store the image to disk in raw format using 768 x 512 x 3 = 1,179,648 bytes The bit stream would have length 1,179,648 x 8 = 9,437,184 512x512 high res icon required Here are Google's requirements Highres icon To publish your Store Listing, a Highres icon is required This icon is used in various locations on Google Play Highres icon requirements 32bit PNG (with alpha) Dimensions 512px by 512px Maximum file size 1024KB
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