I need to convert text to an image. Using imagemagick I can get this done.
However, part or all of the text could be in Hebrew (an RTL language).
This means the words in Hebrew are rendered backwards.
If I was assured that the text was only Hebrew, I would have just reversed the text before sending it to ImageMagick. However, this solution won't work if part of the text is in English.
Does anyone have any idea how this can be done?
P.S. I'm not committed to using ImageMagick, if a better way comes up.
However, the solution should work for both Linux and Windows (I might be able to live with a non-windows solution, but a multi OS solution is preferable).
Thanks,
Niv
i see this link
http://www.experts-exchange.com/Software/Photos_Graphics/Web_Graphics/Q_21766928.html
they suggest
Maybe Unifier (http://www.melody-soft.com/html/unifier.html) or Encoding Master (http://www.elfdata.com/encodingmaster/index.html)
Sounds like your real issue is to re-order the bidirectional text for imagemagick. A job for the Unicode bidirectional algorithm. See http://unicode.org/reports/tr9/ That report lists two reference implementations. Or see this one: http://fribidi.org/
Related
I'm having problems displaying emojis in a UILabel.
in some cases, it even causes a crash when lay-outing the characters in the label.
these characters are returning from server as unicode, and are parsed with AFNetworking framework.
this is an example of how it is returned from the server (console logs):
\U05d4\U05d9\U05d9
i have tried different approaches, like lowercasing this to "\u05d4" or playing with the encoding of the string returning.
nothing seems to work.
i did managed to show a couple of emojis properly (which makes me think it maybe a server related issue?) - does the server needs to support sets of unicode characters so it can return it in the appropriate encoding? i'd be happy if someone could clarify this point for me. (btw, server is written in RubyOnRails i believe.)
should i parse the data with a different parser (SBJSON)? although switching the networking framework at this point would be impossible due to time and resources available..
what other options do i have?
Thanks
i think you should be able to just paste an emoji character in the code directly as a text.
I saved the face "savouring delicious food emoji" to database, and read it in php json_encode which show "uD83D\uDE0B"。 but usually we use one <img /> label to replace it .
however,usually I just find this format '\uE056' not "uD83D\uDE0B",to replace with pic E056.png .
I don't know how to get the pic accroding to 'uD83D\uDE0B'.someone know ?
What the relation between 'uD83D\uDE0B' and '\uE056'， they both represent emoji "savouring delicious food"?
The Unicode character U+1F60B FACE SAVOURING DELICIOUS FOOD is a so-called Plane 1 character, which means that its UTF-16 encoded form consists of two 16-bit code units, namely 0xD83D 0xDE0B. Generally, Plane 1 characters cause considerable problems because many programs are not prepared to deal with them, and few fonts contain them.
According to http://www.fileformat.info/info/unicode/char/1f60b/fontsupport.htm this particular character only exists in DejaVu fonts and in Symbola, but the versions of DejaVu I’m using don’t contain it.
Instead of dealing with the problems of encodings (which are not that difficult, but require extra information), you can use the character reference 😈 in HTML. But this does not solve the font problem. I don’t know about iPhone fonts, but in general in web browsing, the odds of a computer having any font capable of rendering the character are probably less than 1%. So you may need to use downloadable fonts. Using an image is obviously much simpler and mostly more reliable.
U+E056 is a Private Use codepoint, which means that anybody can make an agreement about its meaning with his brother or with himself, without asking anyone else’s mind. A font designer may assign any glyph to it.
IMPORTANT: As of this posting, the only browser that doesn't automatically support emojis is chrome.
FOR CHROME:
Depending on what server side language you are using, you should be able to find a library that converts emojis for you. I recently needed to solve this issue with php and used this library:
https://github.com/iamcal/php-emoji
The creator essentially created a sprite and adjusts the css according to the unicode of the emoji. It isnt pretty, but luckily he/she did all the grunt work for you. If you're using a different language you should be able to find something similar.
how do I put those little boxes into a php file?
Same way as any other Unicode character. Just paste them and make sure you're saving the PHP file and serving the PHP page as UTF-8.
When I put it into a php file, it turns into question marks and what not
Then you have an encoding problem. Work it out with Unicode characters you can actually see properly first, for example ąαд™日本, before worrying about the emoji.
Your PHP file should be saved as UTF-8; the page it produces should be served as Content-Type: text/html;charset:UTF-8 (or with similar meta tag); the MySQL database should be using a UTF-8 collation to store data and PHP should be talking to MySQL using UTF-8.
However. Even handling everything correctly like this, PCs will still not show the emoji. That's because:
they don't have fonts that include shapes for those characters, and
emoji are still completely unstandardised. Those characters you posted are in the Unicode Private Use Area, which means they don't have any official meaning at all.
Each network in Japan uses different character codes for their emoji, mapped to different areas in the PUA. So even on another mobile phone, it probably won't display the correct character, unless you spend ages manually converting emoji codes for different networks. I'm guessing the ones you posted above are from SoftBank (iPhone?).
There is an ongoing proposal led by Google and Apple to collate the different networks' emoji and give them a proper standardised place in Unicode. Until then, getting emoji to display consistently across networks is an exercise in unhappiness. See the character overview from the standardisation work to see how much converting you would have to do.
God, I hate emoji. All that pain for such a load of useless twee rubbish.
I want to add some comments to my mp3s but my comments all are in non-latin characters like arabic.
I have written a shell program to get the comments from user in windows but since LAME.exe is a console program I don't know how to convert these non-latin character to something meaningful for LAME.
so is there any way to add these kind of comments using LAME.exe?
regards.
I think you're going to have real trouble doing it on the Windows command line, as everything will be working in the system default code page (ANSI) and not Unicode. You won't be able to use Arabic at all unless you're on an Arabic Windows install (ANSI=code page 1256; settable in the region options), and even then I'm not sure it'll actually use the right encoding.
In any case lame.exe is not a good choice for editing tags, as it's an audio encoder, which will decode and re-encode the MP3, causing quality loss.
There are many graphical apps that will batch re-tag MP3s. If you want a scriptable solution you're probably better off with a higher-level language/library that supports Unicode better than the Windows command line/bat files (eg Python + Mutagen, but there are many possibilities depending on what languages you're familiar with).
This is sort of a generic question due to my lack of experience with fonts, so a little patience and/or pointing in the right direction to get more info would be appreciated. I have an iphone app and am noticing that when I print some text on my labels, I end up with garbage when the string contains non-ascii, like Korean for example.
My guess is that since my UILabels, for instance, are using the system font, perhaps the system font does not support displaying wide characters. However, I'm left with a few beginner questions:
1) How do I set the system font so my iphone sdk objects that use the system font use it?
2) Does this sound correct that the system font probably doesn't support wide characters and is the reason I see garbage when I have characters out of the normal ascii range?
Thanks. Let me know if I need to clarify the problem please.
Update:
I later suspected maybe it was a problem on my server end so posted this related but not identical post here: does google app engine display unicode differently in StringProperty v StringListProperty objs?
It turns out the problem was not with the font, but with improperly encoding the data response from the server into Ascii when I should have used UTF8. It appears the font supported unicode to begin with.
I need to add text string to a TIFF image. I am planning to use libTIFF for editing the TIFF image. The plan is to convert text to image using freetype2 and then somehow render the text image on to TIFF. Is this the right approach?
Any pointers on how to convert text to image? I saw the sample code of ft2 - initialising the library, creating face and then setting character sizes. But not sure what to do next? any pointers appreaciated.
One way could be using ImageMagick. They have tools for image composition and text rendering. (and many more)
Although ImageMagick is primarily used from the command line (especially in web environments) several language interfaces are available, too. Java, C, C++, ...
ImgSource is a really nice library for C/C++ on Windows, and it can do this out of the box.
http://www.smalleranimals.com/isource.htm
It's not free, but it's pretty cheap ($59)
You don't tell us which language you need to use, should it be portable or for a given platform, etc.
Using a ready to use existing graphic library, like the (big!) ImageMagick or others like libGD or DevIL might be the easiest way, lot of them have binding for lot of languages.
if youre on windows and in c++ then it's pretty easy to use gdiplus for drawing fonts. you have access to any installed font and you can save the raster out as tiff or jpeg etc as well using the one api.
of course you could also use some combo of freetype and libtiff, but you'll have to build those libs for win32. not that its hard, just more fussing around you may not want to do.