With the continuous advancement of modern educational technologies, there has been a growing interest in multimedia visual expression methods within the domain of music pedagogy. These methods aim to provide students with an intuitive and vivid learning environment, facilitating a more profound understanding of music's structure and emotions. However, despite the availability of various image enhancement techniques, many tend to focus only on certain image attributes, often neglecting a comprehensive perspective on image aesthetics and authenticity. Addressing this issue, innovative image enhancement techniques are introduced in this study: an adaptive Gamma correction method for luminance adjustment, a saturation correction method based on luminance components, and a multimedia image enhancement method founded on an improved CLAHE algorithm. These methods not only significantly elevate the visual effects of multimedia in music teaching but also offer substantial technical support for the modernization of music education.