Cycles image texture enhance

Is it possible to make a mapped image texture change its texture properties in node compositing? I need to make a texture show in a LED TV, but the image seems not vivid enough for a LED TV, though opening this same image in an image previewer, it seems much more vivid.

thanks in advance

you can add a bright/contrast node to get better brighter look!

happy cycles

I tried that before, and the entire image gets brighter. I want just the colors of the image to be enhanced.

show some pics so we can see what you mean

salutations

Try adding a Hue Saturation Value node and increase Saturation and value.