A coding apparatus including a memory, a processor, and a display is provided. The processor is configured to assign a first weight to a first reference pixel in a first neighbor block and a second weight to a second reference pixel in a second neighbor block. The first weight assigned to the first reference pixel is greater than the second weight assigned to the second reference pixel because the first reference pixel is closer to a third reference pixel than the second reference pixel. The processor is also configured to compute a value of the third reference pixel based on the first weight of the first reference pixel and the second weight of the second reference pixel, and generate a current block based on the value of the third reference pixel. The display is configured to display an image generated based on the current block.