The input image is then sampled at each grid point to determine the output image's pixel colors. Where grid points lie directly over the center of a source pixel, the grid point's color is that of the source pixel. Each letter is a different color in the image. To double this image's size, a mathematical grid will be overlaid. When using bilinear interpolation, the larger resized image will appear blurry.
Hard edges become softer and jaggies less obvious.
It is not limited to multiples of the source image size, as is -pixelrep. Decreasing Image Size Decreasing the size of an image decreases the number of pixels in the image. The choice of how to color the pixels that remain depends upon the resizing algorithm chosen. The algorithm may not be used when the image size is being decreased. Pixel values in the resulting smaller image will be determined by interpolating between pixel values in the input image in much the same way used when increasing an image's size.