public static ImageOptimizerOptions Default { get; }
The default optimization options used by LEADTOOLS for optimizing an image.
This method returns an ImageOptimizerOptions structure containing the default optimization options to be used to optimize an image.
For more information, refer to the ImageOptimizerOptions structure members.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageOptimization;
public void TestJpegImageOptimizer()
{
// Initialize the RasterCodecs class
RasterCodecs codecs = new RasterCodecs();
// The input and output location
string inputFileName = Path.Combine(LEAD_VARS.ImagesDir, "Cannon.jpg");
string outputFolder = Path.Combine(LEAD_VARS.ImagesDir, "OptimizedImages");
// Initialize a new Optimizer object
ImageOptimizer optimizer = new ImageOptimizer();
// Optimization Options
ImageOptimizerOptions options = ImageOptimizerOptions.Default;
// Set custom optimization options
options.JpegQualityFactor = 255;
options.JpegColorSpace = ImageOptimizerJpegColorSpace.JpegColorSpace422;
// Load the input file into a memory byte array
byte[] orgBuffer = File.ReadAllBytes(inputFileName);
// Optimize this buffer
byte[] optBuffer = optimizer.OptimizeBuffer(codecs, orgBuffer, 0, orgBuffer.Length, options, OptimizeBufferProgress);
// Save this image into the output folder
// Make sure the output folder exists
if (!Directory.Exists(outputFolder))
Directory.CreateDirectory(outputFolder);
// Get the name of the output file from the input file
string outputFileName = Path.Combine(outputFolder, Path.GetFileName(inputFileName));
// Save the optimized buffer to the output file
using (FileStream fs = File.Create(outputFileName))
fs.Write(optBuffer, 0, optBuffer.Length);
// Compare the original image size with the optimized size
long orgSize = new FileInfo(inputFileName).Length;
long optSize = new FileInfo(outputFileName).Length;
int percentage = (int)((double)optSize * 100.0 / orgSize);
string message = string.Format(
"Original image size: {0} KB{1}Optimized image size: {2} KB{1}Percentage: {3}%",
orgSize / 1024, Environment.NewLine, optSize / 1024,
100 - percentage);
MessageBox.Show(message);
//shutdown the RasterCodecs class.
}
static bool OptimizeBufferProgress(int percent)
{
Console.WriteLine(string.Format("{0}%", percent));
return true;
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images";
}