I want to create a java application to change the laptop screen brightness on windows xp/7. Please help

I want to control the brightness of the main-screen within my Mac OS X app (like the F1/F2 buttons). In iOS, there's something like this: UIScreen.mainScreen().brightness = CGFloat(0.5) In OSX w...

I want users on my website to be able to pick a hex colour, and I just want to display white text for dark colours and black text for light colours. Can you work out the brightness from a hex code ...

I have a feature in my app (a metronome app for musicians) to dim the screen in order to save on battery life. To set the brightness, I am using: [UIScreen mainScreen].brightness = 0.1; I am sav...

Currently I am involved in an image processing project where I am dealing with human faces. But I am facing problems with the images in cases where the light source is on either the left or right s...

I want to change brightness in color I implemented this... Settings.System.putInt(context.getContentResolver(),android.provider.Settings.System.SCREEN_BRIGHTNESS, 200); this will change my dev...

I have an image in a tag var img = new Image(); ctx.drawImage(img,0,0,img.width,img.height); ecc... How is possible to change the Brightness and Contrast of this image with javascript? Tnx

I use [[UIScreen mainScreen]setBrightness: ] (in sdk 5.0) to change the system background light in my app. The following steps work with my app Active the app, get the system brightness as defau...

public void SetBright(float value) { Window mywindow = getWindow(); WindowManager.LayoutParams lp = mywindow.getAttributes(); lp.screenBrightness = value; mywindow.setAttributes(lp); } I...

I saw this post Brightness Screen Filter which describes how to create a simple screen filter. That code used private void setBrightness(int brightness) { try { IHardwareService hardware = IHard...

So I have an image that has some dark spots, and they look pretty simple so I think I can creaat an luminance map, invert it and then apply it to my image to undo the dark spots. However all I can ...

I have problems to fully understand the need for gamma correction. I hope you guys can help me. Let’s assume we want to display 256 neighboring pixels. These pixels should be a smooth gradient fro...

I am trying to replicate a screen flash effect in a mac cocoa application similar to that of the Photo Booth. A white layer is overlayed on the screen and the brightness of the screen fades really...

I have a 3D scene with an AmbientLight. And I want to add a second Light (SpotLight) to beam an area with red. Unfortunately the AmbientLight is much brighter than the Spotlight so it is not visibl...

I'm using the following to set the system auto brightness mode and level: android.provider.Settings.System.putInt(y.getContentResolver(),Settings.System.SCREEN_BRIGHTNESS_MODE, 0); android.provi...

Does anyone have an idea how to implement an Brightness Screen Filter like the one here: http://www.appbrain.com/app/screen-filter/com.haxor I need a starting point and I can't figure out how to ...

Recently I've updated Chrome to v.26 and pictures which were displayed using HTML5 canvas were not visible anymore. As I found I had to change to brightness and contrast. How are the values ...

I converted a bunch of "normal" JPG photos via convert infile -colorspace Gray outfile to monochrome. However the result is for all images very dark. Here a sample conversion: original photo and...

Ever since I've been using an external monitor with my laptop, when I need to change the backlight brightness I have to press the monitor's buttons to navigate through its menu and adjust the brigh...

I use [[UIScreen mainScreen]setBrightness: ] (in sdk 5.0) to change the system background light in my app. The following steps work with my app: Active the app, get the system brightness as defa...

I'm working on an image stitching project, and I understand there's different approaches on dealing with contrast and brightness of an image. I could of course deal with this issue before I even st...

How would I program the ability to change brightness in-app? I know that its possible as I have seen at least three apps that can do it. This would be very useful for my app. I know that it's only ...

Entire question is in the title, so I would like to emphasis as I can that: I am interested in current value (not in current settings of it) I am interested in real value (so if the brightness of...

i tried to use the most of the correct answers suggested by the users to adjust the brightness of the iphone (ie [[UIScreen mainScreen]setBrightness:0.0];) but the simulator didn't change its brigh...

I m making App in netbeans platform using java swing Technology.I want to do image processing oncaptured image.This image is capture by X-Ray Gun.after that i want to increase/decrease brightness o...