Short Answer 
You can change image resolution using the `setImageURL()` method in CodeHS, directly adjusting the `width` and `height` attributes in HTML, or using JavaScript with a canvas element to dynamically resize images with `drawImage()`. Each method provides flexibility depending on your preferred approach.
Step 1: Using setImageURL() Method
To easily change the resolution of an image using CodeHS, utilize the setImageURL() method. This method allows you to set the width and height attributes of the image. By adjusting these attributes, you can effectively reduce the image’s resolution to your desired values.
Step 2: Resizing Images in HTML
In HTML, one straightforward way to adjust an image’s resolution is by using the height and width attributes directly in the img tag. This method allows for quick adjustments without manipulating the image file. Remember to specify the values in pixels (px) as shown below:
- Insert the img tag in your HTML.
- Set the width and height attributes.
- Example:
<img src="image.jpg" width="300" height="200">.
Step 3: Adjusting Resolution with JavaScript
If you prefer to use JavaScript for more dynamic resizing, you can create a canvas element and manipulate the image. The drawImage() method allows you to control the size easily. Here’s how to do it:
- Create a new canvas element.
- Get the 2D rendering context with:
var ctx = canvas.getContext("2d"); - Use drawImage() to resize:
ctx.drawImage(img, 0, 0, 300, 300);