从最常用的“.BMP”图像格式中读取图像数据；

对数字图像的表示方式（如RGB、YUV）及各种表示方式之间的转换有初步了解；根据输入参数改变数字图像的色彩、亮度、对比度。-Image format most commonly read from the " BMP."　Image data　converting the digital image representation (such as RGB, YUV), and between the representation of the various preliminary understanding　change the color of a digital image based on input parameters, brightness, contrast.