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Don Wiid  
#1 Posted : Monday, September 15, 2014 9:08:04 PM(UTC)
Don Wiid

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Hi all

My first post on this forum, and I am a lapsed Delphi developer. Please be gentle.

We are trying to reduce a JPG image to a specific size: The short edge = 5", resolution = 120 DPI, while retaining the aspect ratio. See sample image

We can do this in manually in Irfanview, and it is quick and easy. We have not found a way to do this with GraphicsMill.

Sample code (C#) would be most welcome.

Don Wiid attached the following image(s):
#2 Posted : Tuesday, September 16, 2014 8:46:50 AM(UTC)

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Hi Don,

Here is a code example to achieve your task:

using System;

class Program
	static void Main(string[] args)
		Resize(@"C:\input.jpg", @"c:\output.jpg");

	private static void Resize(string inputPath, string outputPath)
		float dpi = 120f;
		//5 inch * 120 dots per inch
		int size = (int)(5f * dpi);

		using (var bitmap = new Aurigma.GraphicsMill.Bitmap(inputPath))
			if (bitmap.Width < bitmap.Height)
				//Set value of height param to 0, so it is calculated based on width paranm
				bitmap.Transforms.Resize(size, 0, Aurigma.GraphicsMill.Transforms.ResizeInterpolationMode.High);
				//Set value of width param to 0, so it is calculated based on height paranm
				bitmap.Transforms.Resize(0, size, Aurigma.GraphicsMill.Transforms.ResizeInterpolationMode.High);

			//Set dpi
			bitmap.DpiX = dpi;
			bitmap.DpiY = dpi;


Edited by user Tuesday, September 16, 2014 8:47:21 AM(UTC)  | Reason: Not specified

Best regards,
Fedor Skvortsov
thanks 1 user thanked Fedor for this useful post.
Don Wiid on 9/16/2014(UTC)
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