png

[原创] png格式的图片在IE6实现透明

由 好久不见. 提交于 2020-01-11 00:18:49
1 filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=bEnabled,sizingMethod=sSize,src=sURL) 属性： enabled : 可选项。布尔值(Boolean)。设置或检索滤镜是否激活。true | false true :　 默认值。滤镜激活。 false :　 滤镜被禁止。 sizingMethod : 可选项。字符串(String)。设置或检索滤镜作用的对象的图片在对象容器边界内的显示方式。 crop : 剪切图片以适应对象尺寸。 image : 默认值。增大或减小对象的尺寸边界以适应图片的尺寸。 scale : 缩放图片以适应对象的尺寸边界。 src :　 必选项。字符串(String)。使用绝对或相对 url 地址指定背景图像。假如忽略此参数，滤镜将不会作用。 Firefox、Opera等完全支持PNG透明图片的浏览器也支持子选择器（>），而IE不识别（包括IE7），所有我们可以通过这来定义Firefox、Opera等浏览器中PNG图片的样式。如下： 例子： #png { } { background : url(../images/bg.png) ; _background : none ; _filter : progid:DXImageTransform

converting .PNG to .ICO in C/C#

由 杀马特。学长 韩版系。学妹 提交于 2020-01-10 11:34:36
问题 I want to convert .PNG files to .ICO files. I want to do it locally with out any internet dependency (so I can't use online tools like converttoico.com etc). I found a wonderful tool called png2ico, but it has a restriction that it can only convert images of size 1X1 to 256X256. Although for now, I am modifying the PNG resolution (in C#) and compressing it to 256X256, and then using this tool to convert it to icon, but the image quality is not good at all. Does any one know of any native

converting .PNG to .ICO in C/C#

由 ◇◆丶佛笑我妖孽 提交于 2020-01-10 11:34:13
问题 I want to convert .PNG files to .ICO files. I want to do it locally with out any internet dependency (so I can't use online tools like converttoico.com etc). I found a wonderful tool called png2ico, but it has a restriction that it can only convert images of size 1X1 to 256X256. Although for now, I am modifying the PNG resolution (in C#) and compressing it to 256X256, and then using this tool to convert it to icon, but the image quality is not good at all. Does any one know of any native

converting .PNG to .ICO in C/C#

由 孤街浪徒 提交于 2020-01-10 11:32:16
问题 I want to convert .PNG files to .ICO files. I want to do it locally with out any internet dependency (so I can't use online tools like converttoico.com etc). I found a wonderful tool called png2ico, but it has a restriction that it can only convert images of size 1X1 to 256X256. Although for now, I am modifying the PNG resolution (in C#) and compressing it to 256X256, and then using this tool to convert it to icon, but the image quality is not good at all. Does any one know of any native

IE6下透明PNG图片的显示

由 感情迁移 提交于 2020-01-09 23:51:59
PNG(Portable Network Graphics)是W3C推荐的网页图片通用格式，但是Microsoft的IE6以下(IE7已经支持)没有把PNG的Alpha 通道打开，造成透明PNG图片的效果出不来。在Firefox、Opera下显示正常的透明PNG图片，在IE下浏览时就会带有灰色背景色，so ugly。。。 不透明的就像这样： 解决方法之一是给透明PNG图片加一个滤镜： 运行代码框 <div style="width:100%;filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='/Files/BeyondPic/2006-12/1/publics.png',sizingMethod='image')></div> [Ctrl+A 全部选择 提示：你可先修改部分代码，再按运行] 或是用CSS的方式控制，把style写在CSS文件中，就不用每贴一张图都要写这么长的代码了。 PS：因为IE5.0以下不支持AlphaImageLoader滤镜，所以IE5.0以下就不能显示透明PNG效果了，不过现在还用IE5.0以下的恐怕是没人了吧。 关于AlphaImageLoader滤镜 语法： filter: progid: DXImageTransform.Microsoft.AlphaImageLoader(

PNG optimisation tools

由 别等时光非礼了梦想. 提交于 2020-01-09 09:12:13
问题 A while back I used a PNG optimisation service called (I think) "smush it". You fed it a weblink and it returned a zip of all the PNG images with their filesizes nicely, well, smushed... I want to implement a similar optimisation feature as part of my website's image upload process; does anyone know of a pre-existing library (PHP or Python preferably) that I can tap into for this? A brief Google has pointed me towards several command line style tools, but I'd rather not go down that route if

PNG optimisation tools

由 旧时模样 提交于 2020-01-09 09:08:12
问题 A while back I used a PNG optimisation service called (I think) "smush it". You fed it a weblink and it returned a zip of all the PNG images with their filesizes nicely, well, smushed... I want to implement a similar optimisation feature as part of my website's image upload process; does anyone know of a pre-existing library (PHP or Python preferably) that I can tap into for this? A brief Google has pointed me towards several command line style tools, but I'd rather not go down that route if

Resize images with PHP, support PNG, JPG

由 旧城冷巷雨未停 提交于 2020-01-09 09:00:09
问题 I am using this class: class ImgResizer { function ImgResizer($originalFile = '$newName') { $this -> originalFile = $originalFile; } function resize($newWidth, $targetFile) { if (empty($newWidth) || empty($targetFile)) { return false; } $src = imagecreatefromjpeg($this -> originalFile); list($width, $height) = getimagesize($this -> originalFile); $newHeight = ($height / $width) * $newWidth; $tmp = imagecreatetruecolor($newWidth, $newHeight); imagecopyresampled($tmp, $src, 0, 0, 0, 0,

如何利用python+Selenium对登录的验证码进行验证？

由 跟風遠走 提交于 2020-01-08 14:28:36
python+Selenium自动识别验证码Fg.save_screenshot('D:\HuaYu\image\image.png')ce = Fg.find_element_by_id("ensure") # 具体的id要用F12自行查看print(ce.location)im = Image.open('D:\HuaYu\image\image.png') 根据图片调整位置img = im.crop((860,507,945,532))print(img)img.save('D:\HuaYu\image\image01.png') # 这里就是截取到的验证码图片image2=Image.open('D:\HuaYu\image\image01.png')sharp_img=ImageEnhance.Contrast(image2).enhance(2.0)#将图片二进制化sharp_img.save('D:\HuaYu\image\image02.png')#形成新的图片sleep(1)codeText=pytesseract.image_to_string(Image.open('D:\HuaYu\image\image02.png').convert('L'))print(codeText)newcode=codeText.replace(" ", '')

JS截取字符串方法实例

由 余生颓废 提交于 2020-01-08 09:59:38
// JS截取字符串可使用 substring()或者slice() // // 函数：substring() // 定义：substring(start,end)表示从start到end之间的字符串，包括start位置的字符但是不包括end位置的字符。 // 功能：字符串截取，比如想从"MinidxSearchEngine"中得到"Minidx"就要用到substring(0,6) // 例子： var src="images/off_1.png"; alert(src.substring(7,10)); //弹出值为：off // 函数：substr() // 定义：substr(start,length)表示从start位置开始，截取length长度的字符串。 // 功能：字符串截取 // 例子： var src="images/off_1.png"; alert(src.substr(7,3)); //弹出值为：off // 函数：split() // 功能：使用一个指定的分隔符把一个字符串分割存储到数组 // 例子： str="jpg|bmp|gif|ico|png"; arr=theString.split("|"); //arr是一个包含字符值"jpg"、"bmp"、"gif"、"ico"和"png"的数组 // 函数：John() // 功能
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