How Can I Resize Images in C# Beyond the Limitations of Get() Properties?

C#image size adjustment: limit beyond the get () attributes

The image class of the c#provides a GET () attribute to obtain the size, width and height of the image. Although these attributes can be used to access the size of the current image, they do not provide direct adjustment of the size. In order to dynamically adjust the size of the IMAGE object, another method is needed.

Solution: Use the resileImage () method

In order to effectively adjust the size of the image, consider using the following ResizeImage () method:

Method details:

public static Bitmap ResizeImage(Image image, int width, int height)
{
    // ...
}

This method accepts a primitive image object and specifies the required width and height.

It creates a new bitmap with specified size.

• Then use high -quality rendering settings to draw the original image to the new Bitmap to ensure the best result.
ResizeImage () Advantages:

<质> High -quality adjustment size: This method combines advanced settings for synthesis and smooth interpolation, thereby generating high -quality adjustments.

<持> Keep image resolution:

This method sets the resolution of the large and small image to match the original image to ensure that the DPI is consistent regardless of the physical size.
• <止> Prevent heavy shadows: It uses a tank to prevent heavy shadows around the image boundary, which may occur in the process of simply adjusting the size.
• <方法> How to use example:
• To adjust the image size by using the ResizeImage () method, just use the original image and the required size to call it:
<注意> Other precautions:

This method will not automatically maintain the horizontal ratio of the image. If necessary, pre -processing or post -processing may be required to adjust the size.

Although the ResizeImage () method can produce high -quality results, you need to pay attention when saving the image that adjusts the size to avoid potential pseudo -shadows or quality declines.

Bitmap resizedImage = ResizeImage(originalImage, newWidth, newHeight);

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