How to vector a jpg.

I have a small picture that I want to make larger. Resizing in Photoshop doesn't work with the clarity. Could I be pointed into the right direction.
thanks
Mike

If all you have is this file, then forget about any autotrace functions...
Correct. To elaborate:
There is such a huge misconception about autotracing and "resizing with clarity" as you put it (i.e.; resolution independence). There is no magic. You don't get something-for-nothing. Running an autotrace routine does not create additional resolution. And garbage in, garbage out still applies.
Entropy still rules. As in anything else, information is actually lost in mere "conversions" (especially automatic ones).True "resolution" is information. The amount of information (desired detail) and noise (undesireable detail) is just as fixed in a vector-based graphic as it is in a raster-based image. When you autotrace an ugly (in terms of low information and noise) raster image, you do not gain the ability to enlarge it "with clarity." You simply trade one kind of low-information ugliness for another.
Consider: What would be the "most accurate" automatic vector-based tracing of your image? It would be one vector square path for each square pixel in the image. That would be a "perfect" autotrace. And functionally it would be exactly equal to the original raster image. Absolutely nothing would be gained.
That's the big misconception about autotracing. Only by applying intelligence to reinterpret the image as a vector-based graphic will yield the improvement you seek. And autotrace routines contain no reall shape-recongnition intelligence. An autotrace routine, for example doesn't know "monkey tail" from "monkey eyeball". Only human intelligence does.
Learn to use the drawing tools. That's what vector drawing programs are really all about. There is no automagic shortcut.
JET

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2014-11-28 14:46 GMT+01:00 cuisinerouge . <[email protected]>:
Thanks !
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>
2014-11-28 14:43 GMT+01:00 c.pfaffenbichler <[email protected]>:
how do you know how much compression a jpg file is compressed with ?
>> created by c.pfaffenbichler
>> <https://forums.adobe.com/people/c.pfaffenbichler> in *Photoshop General
>> Discussion* - View the full discussion
>> <https://forums.adobe.com/message/6969227#6969227>
>>

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hi all,
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hi all,
I have a table with 2 columns.
First col is of "Name" and second col is of type
"image" .
I am using sql server 7.0 on window 2000.
now i have created table. I want to insert a jpg/gif
image in its 2nd column.
How can i do so ? and how i can i read the image
object after insertion ?
I am using 2nd col of type "image" and NOT Binary or
varBinary.
Any idea will be highly appreciated.
Thanks in advance.
AlwaysJavaHi,
Below are some excerpts from my program.. which was doing image insertions and retrievals also.. I have included the image insertion and retrieval portion.. retrieval can be done in more than one ways.. one of them is given.. for very large images, u can read chunks of data from the input stream and write it to the disk. for smaller ones , the given methods work very well..
I tested the program with jdk1.4.0 and aveConnect3.0 driver. on an
SQL server 7 machine from my box running windows 2000... and it worked..
Im not still sure if this is the optimised way.. there can be other more optimised methods..
hope this clears your problem..
cheers,
-Jer
    Connection conn = null;
    Statement stmt = null;
    ResultSet rst = null;
    PreparedStatement pstmt = null;
    FileInputStream fis = null;
    FileOutputStream fop = null;
    File file = null;
    InputStream is = null;
    String createtable = "Create table testtable (name varchar(32),_image image)";
    String inserttable = "Insert into testtable values (?,?)";
    String retrievetable = "Select _image from testtable";
    String droptable = "Drop table testtable";
    String url = "jdbc:AvenirDriver://CodeServer:1433/test";
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//Create the table
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//Insert the file into the table
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//Updating the table
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//clean up the streams and atatement
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// Retrieve the image from the table..
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//allocating the buffer size to store the data from inpuit stream ... here whole inptstream is allocated..
//(The buffer size can be varied if the file is too large and the reading be..
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How to vector a jpg.

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