使用 PHP 裁剪 后缀名为 jpg 的图片 怎么做使其背景为透明色 - V2EX
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beautifulSpring

使用 PHP 裁剪 后缀名为 jpg 的图片 怎么做使其背景为透明色

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  •   beautifulSpring Jul 3, 2017 2686 views
    This topic created in 3226 days ago, the information mentioned may be changed or developed.

    后台的上传的图片,等比裁剪图片,图片没有占满画布,白色背景色就会显示出来,很不美观,怎么是白色背景色变为透明。求指点哈

    9 replies    2017-07-03 10:35:50 +08:00
    sarices
        1
    sarices  
       Jul 3, 2017
    jpg 貌似不支持透明图层吧
    DoraJDJ
        2
    DoraJDJ  
       Jul 3, 2017
    jpg 不支持透明层
    IOgoo
        3
    IOgoo  
       Jul 3, 2017
    jarlyyn
        4
    jarlyyn  
       Jul 3, 2017
    不要裁切固定比例的
    loading
        5
    loading  
       Jul 3, 2017 via Android
    用那个”透明”给填上,233
    johnlui
        6
    johnlui  
       Jul 3, 2017
    jpg 算法不支持透明,也许楼主换个 png 就解决了
    gouchaoer
        7
    gouchaoer  
       Jul 3, 2017
    背景弄成黑白格子
    IOgoo
        8
    IOgoo  
       Jul 3, 2017
    shyling
        9
    shyling  
       Jul 3, 2017
    ajpg
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