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Reading Text from Images Using Java - DZone Java
10 Mar 2017 ... This quick Java app uses the Tesseract library to help turn images into text. ... Step 2 to Step 5 and simply download the tessdata-master folder from https:// github.com/tesseract- ocr /tessdata ... import net.sourceforge.tess4j.*;.

Content-Length: " + numOfBytes + "\r \n"); outToClientwriteBytes("\r\n"); The above set of commands are particularly interesting These commands prepare the header lines for HTTP response message and send the header lines to the TCP send buffer The first command sends the mandatory status line: HTTP/10 200 Document Follows, followed by a carriage return and a line feed The next two command lines prepare a single content-type header line If the server is to transfer a gif image, then the server prepares the header line Content-Type: image/jpeg If, on the other hand, the server is to transfer a jpeg image, then the server prepares the header line Content-Type: image/gif (In this simple Web server, no content line is sent if the object is neither a gif nor a peg image) The server then prepares and sends a content-length header line and a mandatory blank line to precede the object itself that is to be sent We now must send the file FileName into the DataOutputStream outToClient But because outToClient works with bytes, we first must perform a conversion to bytes: We can now send the requested file: outToClientwrite(fileInBytes, 0, numOfBytes); The above command sends the requested file, fileInBytes, to the TCP send buffer TCP will concatenate the file, fileInBytes, to the header lines just created, segment the concatenation if necessary, and send the TCP segments to the client connectionSocketclose(); After serving one request for one file, the server performs some housekeeping by closing the socket connectionSocket To test this web server, install it on a host Also put some files in the host Then use a browser running. Return to Table of Contents. Print QR In Visual Basic .NET Using Barcode printer for Visual .Related: .NET Winforms Barcode Generator Library, Print Barcode Java , RDLC VB.NET Barcode Generation



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Download free Asprise Java OCR SDK - royalty-free API library with ...
Asprise Java OCR library offers a royalty-free API that converts images (in formats like JPEG, PNG, TIFF, PDF , etc.) into editable document formats Word, XML, ...

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Reading Text from Images Using Java - DZone Java
10 Mar 2017 ... This quick Java app uses the Tesseract library to help turn images into ... tessdata-master folder from https://github.com/tesseract- ocr /tessdata.

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Portable Network Graphics (PNG) format provides the advantages of the GIF format but supports greater color depth PNG files can store colors with 8, 24, 32, or 48 bits per pixel, and grayscales with 1, 2, 4, 8, or 16 bits per pixel PNG also supports lpha channel, so it's a suitable format for storing images that support a high number of colors with transparency. Encode Barcode In Java Using Barcode creator for Java Control to generate, create barcode .Related: Generate PDF417 .NET , .NET WinForms ISBN Generator , Print UPC-E Excel

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rahulsaraf/java-OCR-example: How to use OCR - java - GitHub
How to use OCR - java. Contribute to rahulsaraf/ java - OCR -example development by creating an account on GitHub .

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OCR in java - How to read text from an image | Techdora
31 Aug 2019 ... OCR in java is supported by tess4j API, which you can use to read text from different documents like PDFs and ... import net.sourceforge.tess4j.

Decompressing PNG Image Data If X is the first byte n a row, the value of b u f f e r [ N ] [X-1] is zero Likewise, if the current row is the first row for the pass, all of the values of b u f f e r [previous] are implicitly zero All filters are performed using integer arithmetic and the data bytes are treated as signed (Algorithms 145-148) If the result from reversing a filter is greater than 255, only the least significant byte in the result is used. EAN-13 Generator In .NET Using Barcode encoder for .NET . Algorithm 145 Reverse Sub Filter. Encode Bar Code In .Related: EAN 128 Generation Excel , Create EAN-8 Java , Codabar Generating .NET WinForms

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Asprise Java OCR library offers a royalty-free API that converts images (in formats like JPEG, PNG, TIFF, PDF, etc.) into editable document formats Word, XML, ...

642 Creating Command Objects Once you have the connection object, you can move on to creating a command object As you can see from the code, there is very little difference between the SqlCommand class and the SqlCeCommand class Nor is there much difference between the two data reader classes The only change we had to make in the program is caused by the absence of the Seek method in the SqlDataReader class Although there is very little difference between the two command classes, there can be a great difference in how you use them This is because SQL Server has stored procedures and SQL Server CE does not, and access to the stored procedures is provided only through the SqlCommand class 643 Using SQL Server Stored Procedures A stored procedure is a procedure that is written in SQL, stored in a SQL Server database, and executable by a client program It can have input and output parameters and returns an integer value A stored procedure can be as simple as a single SELECT statement or as complex as a multitable update with parameter checking and error handling Stored procedures encapsulate functionality on the server side One benefit of stored procedures is that they execute much more quickly than the same logic would in a submitted batch of SQL statements With a stored procedure, the database engine performs query analysis and optimization and caches the compiled query optimization plan when the stored procedure is first created On subsequent executions of the stored procedure, the database engine can bypass the analysis, optimization, and compilation To execute a submitted batch of SQL statements, on the other hand, the entire process must be performed each time a batch is submitted Listing 612 shows a stored procedure that updates name and price information for a specified product We use this stored procedure, named procModifyProductInfo during this discussion It is not the most efficient code ever written, but it is straightforward and readable, and it adheres to the SQL Server convention that successfully executed procedures should return 0.

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erences the sequence in the dictionary The longer the dictionary sequences are and the more frequently they are repeated in the uncompressed data, the greater the compression The trick in dictionary-based compression is how to transmit the dictionary in the compressed data The most common dictionary-based compression schemes in use are based upon those described by Abraham Lempel and Jacob Ziv (1977 and 1978), and known as LZ77 and LZ78, respectively LZ77 uses a sliding window into the uncompressed data to implement the dictionary1 LZ78 builds a dictionary dynamically from the uncompressed data GIF Compression LZW is a variant of the LZ78 process that was described in a paper by Terry Welsh of Sperry (now Unisys) in 1984 CompuServe adopted it for use in the GIF format shortly fterwards In the LZW method, the compressed data stream consists entirely of codes that identify strings in a dictionary The dictionary is initialized so that it contains each possible data value as a predefined string For example, if 8-bit data is being encoded, the dictionary initially contains 256 1-byte strings containing the values 0-255 The compression reads characters from the input stream and appends them to the current string until the current string no longer has a match in the dictionary At that point it outputs the code for the longest matching string, adds the nonmatching string to the dictionary (the matching string plus one character), and finally starts a new string that contains the first nonmatching character Each time a code is written to the output stream, an entry is added to the dictionary Algorithm 122 illustrates how the dictionary is created in the LZW process Here we are assuming that 8-bit data is being used and that the function Output writes 9-bit codes to the output stream Figure 125 shows how a sample string would be compressed using the LZW process The first column shows the string at each stage in the compression process; the second column shows the value written to the output stream at each stage; and the third column shows the new code that is created This input string in Figure 125 consists of 27 characters Using 8 bits per character, the string requires 216 bits The LZW process uses 20 literal values and dictionary codes to represent the string, so 9 bits are required to encode each LZW value, giving a total of 180 bits a reduction of 17% in the compressed version It takes only 33 codes to encode the same string repeated twice (a 31% reduction) and 42 codes to encode it repeated three times (a 41% reduction) The more repetition in the input stream, the greater the compression the LZW process gives.

Global String DICTIONARY [0511] Global NEXTCODE = 256 Procedure Initialize Begin For I = 0 To NEXTCODE - 1 Do DICTIONARY [I] = CHARACTER (I) End Function SearchDictionary (String SEARCH) Begin For I = 0 To NEXTCODE - 1 Do Begin If DICTIONARY [I] = SEARCH Then Return I End Return -1 End Procedure Compress (String DATA Begin Initialize LASTSTRING = NULL For I = 1 To Length (DATA) Do Begin CurrentString = LASTSTRING + DATA [I] CODE = SearchDictionary (CURRENTSTRING) If CODE < 0 Then Begin // Me now have a string with no match in the // dictionary Output the code for the longest // string with a match CODE = SearchDictionary (LASTSTRING) Output (CODE) // Add the nonmatching string to the dictionary DICTIONARY [NEXTCODE] = CURRENTSTRING NEXTCODE = NEXTCODE + 1 // Start a new string, beginning at the point // where we no longer had a match LASTSTRING = DATA [I] End Else Begin // The current string has a match in the dictionary // Keep adding to it until there is no match LASTSTRING = CURRENTSTRING End End // Output what is left over Output (SearchDictionary (LASTSTRING)) End.

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The Cloud OCR API is a REST-based Web API to extract text from images and convert scans to searchable PDF . Free OCR software as a hosted service and as  ...

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How to use tesseract OCR in android and in eclipse and in java ...
For Eclipse , try the Development with Tess4J in NetBeans, Eclipse , and command-line tutorial .












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