Adaptive Weight Allocation-Based Subpixel Rendering Algorithm

In this letter, a new approach is presented for adaptive weight allocation-based subpixel rendering in organic light-emitting diode displays. Subpixel rendering is used to enhance the apparent resolution without changing a pixel structure. Existing methods have blurring and color fringing artifact after subpixel rendering. The proposed method, on the other hand, dynamically controls weights of current and neighboring pixels based on color difference. Thus, it preserves the image quality, while increasing the resolution. In experiments, the proposed subpixel rendering improved luminance sharpness by up to 0.043, when compared with the benchmark methods. For chrominance blending, the peak signal-to-noise ratio of the proposed method was up to 6.192 dB higher than those of benchmark methods.