如果手边有一张标准的半身照如下（本例图片宽600像素，高800像素）
![](https://wkrtcs.bdimg.com/rtcs/image?w=599&md5sum=2a4c5b0b70cbc74f6a9bb26e9b9388af&sign=b8ea242891&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=29&ipr={"t":"img","w":"599","h":"801","dataType":"jpeg","c":"word/media/image1.png","imgOriW":600,"imgOriH":800})
修改照片的步骤
◆ 察看图片像素大小
◆ 缩放到适当比例
◆ 剪裁
◆ 保存
◆ 察看图片像素大小
依次点击Windows左下角
开始—>程序—>附件—>画图（系统不同，显示略有不同）
![](https://wkrtcs.bdimg.com/rtcs/image?w=599&md5sum=2a4c5b0b70cbc74f6a9bb26e9b9388af&sign=b8ea242891&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=29&ipr={"t":"img","w":"599","h":"642","dataType":"jpeg","c":"word/media/image2.png","imgOriW":599,"imgOriH":645})
打开的画图程序如下
![](https://wkrtcs.bdimg.com/rtcs/image?w=481&md5sum=2a4c5b0b70cbc74f6a9bb26e9b9388af&sign=b8ea242891&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=29&ipr={"t":"img","w":"481","h":"469","dataType":"jpeg","c":"word/media/image3.png","imgOriW":482,"imgOriH":470})
依次点击 文件—>打开，选择并打开需要修改的图片
![](https://wkrtcs.bdimg.com/rtcs/image?w=481&md5sum=2a4c5b0b70cbc74f6a9bb26e9b9388af&sign=b8ea242891&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=29&ipr={"t":"img","w":"481","h":"467","dataType":"png","c":"word/media/image4.png","imgOriW":483,"imgOriH":469})
点击图像—>属性，察看一下图片的大小，本例的大小为宽600像素，高800像素。
![](https://wkrtcs.bdimg.com/rtcs/image?w=642&md5sum=2a4c5b0b70cbc74f6a9bb26e9b9388af&sign=b8ea242891&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=29&ipr={"t":"img","w":"642","h":"878","dataType":"jpeg","c":"word/media/image5.png","imgOriW":692,"imgOriH":948})
由于这张照片规格比上传要求的要大，并且是半身照，我们需要缩小并且剪裁照片，才能符合要求。首先需要计算照片需要缩小的比例，
点击图像—>拉伸/扭曲，在水平和垂直旁边的文本框里面输入相同的数字（这样图片才不会变形！），本例中经过尝试，选择了缩小比例为45%。
![](https://wkrtcs.bdimg.com/rtcs/image?w=383&md5sum=2a4c5b0b70cbc74f6a9bb26e9b9388af&sign=b8ea242891&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=29&ipr={"t":"img","w":"383","h":"262","dataType":"jpeg","c":"word/media/image6.png","imgOriW":383,"imgOriH":262})
点击确定之后，如果输入的比例不合适，那么点击编辑—>撤销，重复上述步骤，直至调整到合适的比例。
先用鼠标点击画图左边工具栏第一行第二个，然后用鼠标在图片上划定范围。画图右下角显示了划定矩形的大小，当选定的大小恰好为178×237的时候，选择编辑—>复制，这样我们就把选中的内容复制了。
（下面的操作是在原图像上修改，一旦保存不可恢复）选择编辑—>粘贴，然后选择图像—>属性，宽和长分别填入178和237，点击文件—>保存，图片处理完毕。
![](https://wkrtcs.bdimg.com/rtcs/image?w=570&md5sum=2a4c5b0b70cbc74f6a9bb26e9b9388af&sign=b8ea242891&rtcs_flag=1&rtcs_ver=3.1&l=webapp&bucketNum=29&ipr={"t":"img","w":"570","h":"498","dataType":"jpeg","c":"word/media/image7.png","imgOriW":570,"imgOriH":499})
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