CFC for generating JSON data from a folder of images to be used with CKEditor's Image Browser addon.

ImageBrowser.cfc

component name="ImageBrowser"
	output="false"
{
	remote array function list(required string dir = "")
		output="false"
		returnformat="JSON"
	{
		var length = 0;
		var path = var image = var folder = "";
		var result = [];
 
		arrayEach(
			directoryList(expandPath("./#ARGUMENTS.dir#"), true, "path"),
			function(x) {
				length = listLen(x, "\/");
				if (reFind("\w.*\.(jpg|png|gif|bmp)", listGetAt(x, length, "\/"))) {
					image = listGetAt(x, length, "\/");
					path = reMatch("(#listGetAt(dir, 1, "\/")#).*", reReplace(listDeleteAt(x, length, "\/"), "\\", "/", "ALL"))[1];
					folder = listGetAt(x, length - 1, "\/");
					arrayAppend(result, {"image": "/#path#/#image#", "folder": "#folder#"});
				}
			}
		);
 
		return result;
	}
}