How to Proportionally Resize an Image While Maintaining Aspect Ratio with Max Height and Max Width Constraints?

Resize Image Proportionally with MaxHeight and MaxWidth Constraints

Envision an image that exceeds the stipulated maximum width or height. To rectify this, we aim to resize it proportionally, ensuring adherence to both the maximum and minimum constraints while preserving the original aspect ratio. Here's how it's done:

Firstly, we calculate the scale ratios for both width and height:

ratioX = maxWidth / imageWidth
ratioY = maxHeight / imageHeight

Subsequently, we determine the minimum ratio between the two:

ratio = min(ratioX, ratioY)

Using the derived ratio, we resize the image:

newWidth = imageWidth * ratio
newHeight = imageHeight * ratio

The result is a new image that adheres to the specified width and height constraints while maintaining its aspect ratio.

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