ImageMagick

How to install, test, convert, resize PDF using ImageMagick, Ghostscript, Windows Vista/7 x64

由 三世轮回 提交于 2020-01-09 09:53:26
问题 I'm having trouble with getting ImageMagick and Ghostscript to work together - everything seems difficult, from installation, to testing, to actually using the software. Does anyone have any tips? 回答1: I've just spent the last three hours getting ImageMagick to play nicely with PHP for a PDF to JPG convert. Instead of documenting it myself locally, I figured I'd write it up here, with all the buzzwords and things I screwed up, so the next noob can save some time. Tested on two OSs,Windows 7

轻松搭建基于 Serverless 的文档图片在线转换服务

由 十年热恋 提交于 2020-01-08 14:23:44
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 函数计算（Function Compute） ： 函数计算 是一个事件驱动的服务，通过函数计算，用户无需管理服务器等运行情况，只需编写代码并上传。函数计算准备计算资源，并以弹性伸缩的方式运行用户代码，而用户只需根据实际代码运行所消耗的资源进行付费。函数计算更多信息 参考 。 1 核心优势 异构服务：支持多种运行环境 用于媒体文件转换的库或者二进制往往和业务的运行环境不同，对计算资源的需求也有较大的差异。 函数计算支持多种运行环境，支持为独立的转换函数定制算力单位，根据请求量自动伸缩，让核心业务和支持业务做到较好的分离。 灵活触发：支持多种触发方式 函数计算既可以通过集成事件源服务（OSS、API 网关、日志服务和表格存储）产生事件来触发函数执行，也可以通过 HTTP 触发器使用 HTTP 请求触发函数执行，还支持 API/SDK 直接调用函数。 弹性伸缩: 轻松应对负载的波峰波谷 函数计算提供跨可用区的容灾能力，根据请求量自动进行毫秒级弹性扩容，快速调度计算资源，轻松应对业务洪峰。 预留实例功能彻底消除实例冷启动带来的延时毛刺，为在线应用迁移至函数计算扫清障碍! 工程效率：搭建速度快，运维代价小 使用函数计算，开发者无需管理服务器等基础设施，只需编写并上传代码，函数计算准备好计算资源，弹性可靠地运行任务

How to add word wrapping to texts in Magick++

由 巧了我就是萌 提交于 2020-01-07 09:02:21
问题 I am trying to add texts to images in Magick++ by doing so: Method 1: Magick::Image image(Magick::Geometry(800,800),Magick::Color("white")); Magick::Color color(0,0,0,0); image.font("Waree"); image.fontPointsize(36); image.strokeColor(color); image.fillColor(color); image.annotate("HelloWorld!", NorthWestGravity); Method 2: Magick::Image image(Magick::Geometry(800,800),Magick::Color("white")); Magick::Color color(0,0,0,0); std::list<Magick::Drawable> text_draw_list; text_draw_list.push_back

How to add word wrapping to texts in Magick++

由 纵饮孤独 提交于 2020-01-07 09:01:10
问题 I am trying to add texts to images in Magick++ by doing so: Method 1: Magick::Image image(Magick::Geometry(800,800),Magick::Color("white")); Magick::Color color(0,0,0,0); image.font("Waree"); image.fontPointsize(36); image.strokeColor(color); image.fillColor(color); image.annotate("HelloWorld!", NorthWestGravity); Method 2: Magick::Image image(Magick::Geometry(800,800),Magick::Color("white")); Magick::Color color(0,0,0,0); std::list<Magick::Drawable> text_draw_list; text_draw_list.push_back

Ubuntu imageMagick does not convert PDF to PNG from www-data (php)

由 ◇◆丶佛笑我妖孽 提交于 2020-01-07 05:05:23
问题 I have a problem when I want to convert a pdf file using a simple php script like: <?php shell_exec("convert pdf.pdf image.png"); ?> The conversion works fine when converting from terminal (SSH connection), but only if I'm logged in as myself. The following will give no error nor an output file 'image.png'. sudo su www-data <enters password> convert pdf.pdf image.png 回答1: Your file/folder permissions are wrong, imagemagick (convert) needs write permissions: sudo chmod g+w folder check out

Twitter图像编码挑战[关闭]

由 梦想的初衷 提交于 2020-01-06 16:11:36
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 如果一张图片价值1000字，你可以在140个字符中放入多少图片？ 注意 ：那就是大家！ 赏金的最后期限就在这里，经过一番艰难的考虑后，我认为 Boojum的进入 只是勉强淘汰 Sam Hocevar的 。 一旦我有机会写下来，我会发布更详细的笔记。 当然，每个人都应该随时继续提交解决方案并改进人们投票的解决方案。 感谢所有提交和参赛的人; 我很喜欢他们。 这对我来说非常有趣，我希望这对参赛者和观众来说都很有趣。 我遇到了一篇关于尝试将图像压缩成Twitter评论的 有趣帖子 ，该线程中的很多人（以及 Reddit上的 一个 帖子 ）都提出了有关不同方法的建议。 所以，我认为这将是一个很好的编码挑战; 让人们将钱放在嘴边，并展示他们对编码的看法如何在有限的空间中提供更多细节。 我挑战你想出一个通用系统，用于将图像编码成140个字符的Twitter消息，并将它们再次解码为图像。 您可以使用Unicode字符，因此每个字符的字符数超过8位。 但是，即使允许使用Unicode字符，也需要将图像压缩到非常小的空间内; 这肯定会是一种有损压缩，因此必须对每种结果的好看进行主观判断。 以下是原作者 Quasimondo 从他的编码中获得的结果（图片根据 知识共享署名 - 非商业许可证授权 ）： 你能做得更好吗？ 规则

ImageMagick circular dstortion on iOS

由 旧城冷巷雨未停 提交于 2020-01-06 14:54:14
问题 I am working on an iOS project which uses ImageMagick. I wonder if it is possible to perform some circular distortions on an image, but not on the center of the image, rather in a point (x,y) and of a given radius R. Any (constructive) responses are well appreciated. Many thanks 回答1: If ImageMagick doesn't directly support doing a circular distortion at non-origin, you might want to pass in a sequence of commands to: a) add appropriate border to the image, b) do a circular distortion, c) get

imageMagick not working, to convert the SVG (SVG having mask image also) to PNG

由 怎甘沉沦 提交于 2020-01-06 14:17:38
问题 I have tried to convert SVG to PNG image but it's not working, Tested using this link, but it's creating the white image and if I used $image->setBackgroundColor(new ImagickPixel('transparent')); it created the black/transparent image SVG image : SVG image actual view on browser After converting: SVG to PNG SVG with mask : Sample 回答1: Given all your data downloaded to my computer, I can convert it to png using ImageMagick 6.9.10.82 Q16 Mac OSX Sierra that calls Inkscape 0.92.4 as the SVG

Recommendation for real time image processing tools on Linux [closed]

由 核能气质少年 提交于 2020-01-06 11:08:29
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . I'm trying to find a real time image processing tool that can do image resizing, image/text overlaying and format converting. I found some related posts but they don't quite answer my question. Prioritized criteria for the tool: The processing time needs to be less than 100 ms. The size of output image needs to

Recommendation for real time image processing tools on Linux [closed]

由 ↘锁芯ラ 提交于 2020-01-06 11:08:19
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . I'm trying to find a real time image processing tool that can do image resizing, image/text overlaying and format converting. I found some related posts but they don't quite answer my question. Prioritized criteria for the tool: The processing time needs to be less than 100 ms. The size of output image needs to
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