{"id":576,"date":"2017-07-09T19:44:06","date_gmt":"2017-07-09T11:44:06","guid":{"rendered":"https:\/\/9dream.me\/?p=576"},"modified":"2017-07-10T22:00:35","modified_gmt":"2017-07-10T14:00:35","slug":"python%e5%9f%ba%e7%a1%808-2-%e5%b8%b8%e7%94%a8%e7%ac%ac%e4%b8%89%e6%96%b9%e6%a8%a1%e5%9d%97-pil","status":"publish","type":"post","link":"https:\/\/9dream.me\/python%e5%9f%ba%e7%a1%808-2-%e5%b8%b8%e7%94%a8%e7%ac%ac%e4%b8%89%e6%96%b9%e6%a8%a1%e5%9d%97-pil\/","title":{"rendered":"Python\u57fa\u78408.2-\u5e38\u7528\u7b2c\u4e09\u65b9\u6a21\u5757 PIL"},"content":{"rendered":"
\n

\u9664\u4e86\u5185\u5efa\u7684\u6a21\u5757\u5916\uff0cPython\u8fd8\u6709\u5927\u91cf\u7684\u7b2c\u4e09\u65b9\u6a21\u5757\u3002<\/p>\n

\u5982\u4f55\u5b89\u88c5python \u7b2c\u4e09\u65b9\u6a21\u5757pillow–Windows\u4e0bPython3.6\u5b89\u88c5\u7b2c\u4e09\u65b9\u6a21\u5757<\/a><\/p>\n

PIL\u5b98\u65b9\u7248\u4e0d\u652f\u6301py3,\u4e0d\u8fc7\u6709\u975e\u5b98\u65b9\u90a3\u4e2a\u7684\u66ff\u4ee3\u54c1pillow,\u5730\u5740\uff1ahttp:\/\/www.lfd.uci.edu\/~gohlke\/pythonlibs\/#pillow<\/p>\n

 <\/p>\n

——————————————————————————————————————————————————————————————————————<\/p>\n

\u57fa\u672c\u4e0a\uff0c\u6240\u6709\u7684\u7b2c\u4e09\u65b9\u6a21\u5757\u90fd\u4f1a\u5728PyPI – the Python Package Index<\/a>\u4e0a\u6ce8\u518c\uff0c\u53ea\u8981\u627e\u5230\u5bf9\u5e94\u7684\u6a21\u5757\u540d\u5b57\uff0c\u5373\u53ef\u7528pip\u5b89\u88c5\u3002<\/p>\n

\u672c\u7ae0\u4ecb\u7ecd\u5e38\u7528\u7684\u7b2c\u4e09\u65b9\u6a21\u5757\u3002-<\/p>\n

PIL\uff1aPython Imaging Library\uff0c\u5df2\u7ecf\u662fPython\u5e73\u53f0\u4e8b\u5b9e\u4e0a\u7684\u56fe\u50cf\u5904\u7406\u6807\u51c6\u5e93\u4e86\u3002PIL\u529f\u80fd\u975e\u5e38\u5f3a\u5927\uff0c\u4f46API\u5374\u975e\u5e38\u7b80\u5355\u6613\u7528\u3002<\/p>\n

\u7531\u4e8ePIL\u4ec5\u652f\u6301\u5230Python 2.7\uff0c\u52a0\u4e0a\u5e74\u4e45\u5931\u4fee\uff0c\u4e8e\u662f\u4e00\u7fa4\u5fd7\u613f\u8005\u5728PIL\u7684\u57fa\u7840\u4e0a\u521b\u5efa\u4e86\u517c\u5bb9\u7684\u7248\u672c\uff0c\u540d\u5b57\u53ebPillow<\/a>\uff0c\u652f\u6301\u6700\u65b0Python 3.x\uff0c\u53c8\u52a0\u5165\u4e86\u8bb8\u591a\u65b0\u7279\u6027\uff0c\u56e0\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u5b89\u88c5\u4f7f\u7528Pillow\u3002<\/p>\n

\u5b89\u88c5Pillow<\/h3>\n

\u5728\u547d\u4ee4\u884c\u4e0b\u76f4\u63a5\u901a\u8fc7pip\u5b89\u88c5\uff1a\u8fd9\u662fpython 3.6.1 \u4ececmd \u5b89\u88c5\u7684\u65b9\u5f0f<\/p>\n

>> <\/span>pip3 install Pillow\r\n<\/code><\/pre>\n
 <\/p>\n
\u64cd\u4f5c\u56fe\u50cf<\/h3>\n
\u6765\u770b\u770b\u6700\u5e38\u89c1\u7684\u56fe\u50cf\u7f29\u653e\u64cd\u4f5c\uff0c\u53ea\u9700\u4e09\u56db\u884c\u4ee3\u7801\uff1a<\/p>\n
from PIL import Image\r\n\r\n# \u6253\u5f00\u4e00\u4e2ajpg\u56fe\u50cf\u6587\u4ef6\uff0c\u6ce8\u610f\u662f\u5f53\u524d\u8def\u5f84:<\/span>\r\nim = Image.open('test.jpg'<\/span>)\r\n# \u83b7\u5f97\u56fe\u50cf\u5c3a\u5bf8:<\/span>\r\nw, h = im.size\r\nprint<\/span>('Original image size: %sx%s'<\/span> % (w, h))\r\n# \u7f29\u653e\u523050%:<\/span>\r\nim.thumbnail((w\/\/2, h\/\/2))<\/span>\r\nprint<\/span>('Resize image to: %sx%s'<\/span> % (w\/\/2, h\/\/2))<\/span>\r\n# \u628a\u7f29\u653e\u540e\u7684\u56fe\u50cf\u7528jpeg\u683c\u5f0f\u4fdd\u5b58:<\/span>\r\nim.save('thumbnail.jpg'<\/span>, 'jpeg'<\/span>)\r\n<\/code><\/pre>\n
\u5176\u4ed6\u529f\u80fd\u5982\u5207\u7247\u3001\u65cb\u8f6c\u3001\u6ee4\u955c\u3001\u8f93\u51fa\u6587\u5b57\u3001\u8c03\u8272\u677f\u7b49\u4e00\u5e94\u4ff1\u5168\u3002<\/p>\n
\u6bd4\u5982\uff0c\u6a21\u7cca\u6548\u679c\u4e5f\u53ea\u9700\u51e0\u884c\u4ee3\u7801\uff1a<\/p>\n
from<\/span> PIL import<\/span> Image, ImageFilter\r\n\r\n# \u6253\u5f00\u4e00\u4e2ajpg\u56fe\u50cf\u6587\u4ef6\uff0c\u6ce8\u610f\u662f\u5f53\u524d\u8def\u5f84:<\/span>\r\nim = Image.open('test.jpg'<\/span>)\r\n# \u5e94\u7528\u6a21\u7cca\u6ee4\u955c:<\/span>\r\nim2 = im.filter(ImageFilter.BLUR)\r\nim2.save('blur.jpg'<\/span>, 'jpeg'<\/span>)\r\n<\/code><\/pre>\n
\u6548\u679c\u5982\u4e0b\uff1a<\/p>\n
\"PIL-blur\"<\/p>\n
PIL\u7684ImageDraw<\/code>\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u7ed8\u56fe\u65b9\u6cd5\uff0c\u8ba9\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u7ed8\u56fe\u3002\u6bd4\u5982\u8981\u751f\u6210\u5b57\u6bcd\u9a8c\u8bc1\u7801\u56fe\u7247\uff1a<\/p>\n
from<\/span> PIL import<\/span> Image, ImageDraw, ImageFont, ImageFilter\r\n\r\nimport<\/span> random\r\n\r\n# \u968f\u673a\u5b57\u6bcd:<\/span>\r\ndef<\/span> rndChar<\/span>()<\/span>:<\/span>\r\n    return<\/span> chr(random.randint(65<\/span>, 90<\/span>))\r\n\r\n# \u968f\u673a\u989c\u82721:<\/span>\r\ndef<\/span> rndColor<\/span>()<\/span>:<\/span>\r\n    return<\/span> (random.randint(64<\/span>, 255<\/span>), random.randint(64<\/span>, 255<\/span>), random.randint(64<\/span>, 255<\/span>))\r\n\r\n# \u968f\u673a\u989c\u82722:<\/span>\r\ndef<\/span> rndColor2<\/span>()<\/span>:<\/span>\r\n    return<\/span> (random.randint(32<\/span>, 127<\/span>), random.randint(32<\/span>, 127<\/span>), random.randint(32<\/span>, 127<\/span>))\r\n\r\n# 240 x 60:<\/span>\r\nwidth = 60<\/span> * 4<\/span>\r\nheight = 60<\/span>\r\nimage = Image.new('RGB'<\/span>, (width, height), (255<\/span>, 255<\/span>, 255<\/span>))\r\n# \u521b\u5efaFont\u5bf9\u8c61:<\/span>\r\nfont = ImageFont.truetype('Arial.ttf'<\/span>, 36<\/span>)\r\n# \u521b\u5efaDraw\u5bf9\u8c61:<\/span>\r\ndraw = ImageDraw.Draw(image)\r\n# \u586b\u5145\u6bcf\u4e2a\u50cf\u7d20:<\/span>\r\nfor<\/span> x in<\/span> range(width):\r\n    for<\/span> y in<\/span> range(height):\r\n        draw.point((x, y), fill=rndColor())\r\n# \u8f93\u51fa\u6587\u5b57:<\/span>\r\nfor<\/span> t in<\/span> range(4<\/span>):\r\n    draw.text((60<\/span> * t + 10<\/span>, 10<\/span>), rndChar(), font=font, fill=rndColor2())\r\n# \u6a21\u7cca:<\/span>\r\nimage = image.filter(ImageFilter.BLUR)\r\nimage.save('code.jpg'<\/span>, 'jpeg'<\/span>)\r\n<\/code><\/pre>\n
\u6211\u4eec\u7528\u968f\u673a\u989c\u8272\u586b\u5145\u80cc\u666f\uff0c\u518d\u753b\u4e0a\u6587\u5b57\uff0c\u6700\u540e\u5bf9\u56fe\u50cf\u8fdb\u884c\u6a21\u7cca\uff0c\u5f97\u5230\u9a8c\u8bc1\u7801\u56fe\u7247\u5982\u4e0b\uff1a<\/p>\n
\"\u9a8c\u8bc1\u7801\"<\/p>\n
\u5982\u679c\u8fd0\u884c\u7684\u65f6\u5019\u62a5\u9519\uff1a<\/p>\n
IOError: cannot open resource\r\n<\/code><\/pre>\n
\u8fd9\u662f\u56e0\u4e3aPIL\u65e0\u6cd5\u5b9a\u4f4d\u5230\u5b57\u4f53\u6587\u4ef6\u7684\u4f4d\u7f6e\uff0c\u53ef\u4ee5\u6839\u636e\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u7edd\u5bf9\u8def\u5f84\uff0c\u6bd4\u5982\uff1a<\/p>\n
'\/Library\/Fonts\/Arial.ttf'\r\n<\/code><\/pre>\n
\u8981\u8be6\u7ec6\u4e86\u89e3PIL\u7684\u5f3a\u5927\u529f\u80fd\uff0c\u8bf7\u8bf7\u53c2\u8003Pillow\u5b98\u65b9\u6587\u6863\uff1a<\/p>\n
https:\/\/pillow.readthedocs.org\/<\/a><\/p>\n
\u5c0f\u7ed3<\/h3>\n
PIL\u63d0\u4f9b\u4e86\u64cd\u4f5c\u56fe\u50cf\u7684\u5f3a\u5927\u529f\u80fd\uff0c\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684\u4ee3\u7801\u5b8c\u6210\u590d\u6742\u7684\u56fe\u50cf\u5904\u7406\u3002<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
\u9664\u4e86\u5185\u5efa\u7684\u6a21\u5757\u5916\uff0cPython\u8fd8\u6709\u5927\u91cf\u7684\u7b2c\u4e09\u65b9\u6a21\u5757\u3002 \u5982\u4f55\u5b89\u88c5python \u7b2c\u4e09 … \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[17],"tags":[29],"_links":{"self":[{"href":"https:\/\/9dream.me\/wp-json\/wp\/v2\/posts\/576"}],"collection":[{"href":"https:\/\/9dream.me\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/9dream.me\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/9dream.me\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/9dream.me\/wp-json\/wp\/v2\/comments?post=576"}],"version-history":[{"count":5,"href":"https:\/\/9dream.me\/wp-json\/wp\/v2\/posts\/576\/revisions"}],"predecessor-version":[{"id":584,"href":"https:\/\/9dream.me\/wp-json\/wp\/v2\/posts\/576\/revisions\/584"}],"wp:attachment":[{"href":"https:\/\/9dream.me\/wp-json\/wp\/v2\/media?parent=576"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/9dream.me\/wp-json\/wp\/v2\/categories?post=576"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/9dream.me\/wp-json\/wp\/v2\/tags?post=576"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}