IDL二次开发实习内容作业包括打开各种格式的图像保存成各种格式，包括二进制、jpeg，tiff，对图像进行简单处理（平滑，增强，均衡化）-Secondary development of practical content of IDL operations include opening a variety of formats to save images into a variety of formats, including binary, jpeg, tiff, a simple image processing (smoothing, enhancement, equalization)