1. An image processor for converting a computer image to an output image displayable on a television monitor, comprising: an interpolator unit configured to horizontally scale a first number of pixels to a second number of pixels less than the first number of pixels; and an convolution unit configured to provide flicker reduction in the image by simultaneously using bilinear interpolation, and two-line convolution to scale and convolve the second number of pixels into output pixels for the output image, wherein each output pixel has a contribution from at least three of the second number of pixels.