SmartCurve

SmartCurve is a graphic plugin designed mainly for Photoshop and Photoshop Elements that can modify the curves inside a given image.
This can be achieved by loading a curve file that contains the settings you need, as well as by modifying the parameters on the spot, using the resources brought by the plugin.
Although it was primarily built for Photoshop, the plugin is compatible with a wider array of programs, such as Illustrator, Corel Photo-Paint, imageN, IrfanView, Fireworks and XnView, to name just a few.
If you’re interested in viewing the whole list, you can access the Readme file that also provides detailed instructions for installing the plugin on each of the compatible applications.
With SmartCurve, you will be able to process both RGB and gray images, with support for 8 / 16-bit color depth and gamma correction. The plugin will trigger a separate window, where it loads the image against a live histogram and the various additional settings, allowing you to preview the changes that you make.
You can select the channel and color space using the dedicated menus, while shadows and highlighting can be enabled using the corresponding checkboxes. You will also be able to remove color casts, highlight pixels and apply channel masks for special effects. If at any point, you’re unhappy with the results, you may press the ‘Reset’ button and undo the changes you’ve made so far.
On an ending note, SmartCurve comes across as a valuable plugin that can make working with curves a lot simpler. In addition, it is compatible with a wide array of photo editing programs, but on the downside, it hasn’t been updated in quite a while, which may cause incompatibility issues with some of the platforms.