Android :: Extract Color Of A Pixel Of Screen
Jul 28, 2010I want to get the color of one pixel of screen
View 2 Replies
View 2 Replies
Android :: Color Class Can Be Used To Extract Rgb Values From A Pixel - 32 Bit Int
May 22, 2009Before I submit this I just wanted to check it's not a java nuiance.
The Color class can be used to extract rgb values from a pixel (32 bit int).
I implemented a lookup table filter and used a byte to store each individual r g & b value to save a bit of space.
Long story short;
CODE:...........
137 is the magic number causing the error in my case, there may be more.
Android :: Faster Way To Set A (PNG) Bitmap Color Instead Of Pixel By Pixel
Nov 22, 2010I have some png files that I am applying a color to. The color changes depending on a user selection. I change the color via 3 RGB values set from another method. The png files are a random shape with full transparency outside the shape. I don't want to modify the transparency, only the RGB value. Currently, I'm setting the RGB values pixel by pixel (see code below).I've come to realize this is incredibly slow and possibly just not efficient enough do in an application. Is there a better way I could do this? Here is what I am currently doing. You can see that the pixel array is enormous for an image that takes up a decent part of the screen
View 1 Replies View RelatedAndroid :: Randomly Change The Color Of Every Pixel On The Screen
Nov 9, 2010I want each pixel on the screen to flash between red, blue, green, white, and black but independently of each other. Is this possible? I have been searching everywhere with out any luck. Any help on where to start would be greatly appreciated.
View 1 Replies View RelatedAndroid :: Get Pixel Color Values Of Canvas / How To Check That Object Reached Upto Boundary
Jun 16, 2009How can I get Pixel color of a coordinate? There is no method like canvas.getColor(x,y).
Actually, I am new to game developement. I am developing a Game which will restrict object if it comes to that boundary like in pac-man. How can I check that object has reached upto the boundary?
Android :: Screen Pixel Size
Apr 12, 2010I need to know how many pixels wide and tall the screen is. I know that there are a bunch of different localization folders that I could make for different views but I just need to know, programmatically, how many pixels are on the screen so I can do some drawing. How can I detect this?
View 4 Replies View RelatedAndroid :: What Ratio Of Dp-to-pixel Change With Screen Density?
Feb 28, 2009I'm being confused by the 'screen density' concept in Android. I knwe that dpi (dot per inch) came from the printing device. 160 dpi means 160 dots in every inch on the paper. However, when dpi is used for the screen density, for example, what's mentioned '160 dpi screen' in Android document, what's the meaning? 160 pixels on every inch of the display?
As described in http://code.google.com/intl/zh-CN/android/reference/available-resourc..., 1 dip (density-independent pixel) means 1 pixel on a 160 dpi screen. Why does the ratio of dp-to-pixel not necessarily change with the screen density in direct proportion?
When the dpi is changed from 160 to 80, how many pixels will 1dp will take? 0.5?
I can hardly understand why dip/dp is introduced into Android.
HTC EVO 4G :: Phone Screen Pixel Density?
Jun 9, 2010A lot of hay is being made over the iPhone4's 326 ppi screen density. I was just curious, for comparison purposes, what's the pixel density of the Evo screen? This would be an easy calculation to do if I knew what the horizontal and vertical dimensions of the screen were, but I can't seem to find that information anywhere.
If anyone knows the pixel density or even just the exact X and Y dimensions of the screen..
HTC EVO 4G : Single Stuck Red Pixel On My Screen
Jun 4, 2010Noticed a single stuck red pixel on my screen... was so excited about the phone that I didn't wanna return it and have to wait a few days for a replacement since all the radioshacks around my area are sold out.
View 24 Replies View RelatedMotorola Droid X :: Dead Pixel Or Dust Under Screen?
Jul 22, 2010note: this is an artist rendition because my digital camera is terrible and i couldn't figure out how to get the dust in the shot. but it looks just like this. it's a black speck under the screen that can only be seen on bright surfaces and only if you are looking at the screen head on. i'm not sure if it might be a dead pixel. i can certainly live with this problem although i'd prefer if it wasn't there.
1. is this a dead pixel or dust?
2. how do i fix this, can i just exchange it at the vzw store whenever they stop being sold out?
HTC EVO 4G :: Screen Rotation - Minor Light Leakage And Dead Pixel
Jul 8, 2010I've had a HTC Evo now for 2/3 weeks, and I love it! But over the last few days it's started to act funny....
What it's doing is lets say I unlock the phone and have it laying on my desk, in the past it would show the screen in portrait orientation....but over the lat 2/3 days its been jumping to landscape and I have to pick up the phone, tilt it to get it back to portrait, and if I lay it back down it will go back to landscape.
This is mainly annoying when checking emails/texts/etc, but also if I am on the train and holding it near my waste, depending on the angle it will bounce back and forth from portrait to landscape!
I originally did a reformat when I bought it, and I am going to do it again shortly to see if that helps....just wondering if anyone else had this problem and if it's fixable (and yes i do want auto rotation)....
My phone has a few other problems such as minor light leakage, and a dead pixel (which I was going to look past and keep the phone)...so if this is something wrong with the hardware it would be a pretty good reason to get a replacement within my 30 days....
Sprint HTC Hero :: Extract Droid 2.0 Lock Screen / Install On Hero
Dec 7, 2009I hate the lock screen on the Hero, I know their is a way to turn it off, but i don't like getting a message and then the phone doing something in my pocket. Is their a way to extract the .apk of the lock screen from the droid, and just install it on the hero, I understand that the resolution on the hero is different, but hate the current lock screen, i have to slide it down 2-3 times for it to recognize. I downloaded lock 2.0 already on the market, its not bad. but it takes 3-4 seconds on my phone to actually give me the slide to unlock screen.
View 14 Replies View RelatedAndroid :: Background Color Of Preference Screen
Feb 8, 2010How to set the background color of a preference screen?
View 2 Replies View RelatedAndroid :: What Color Uses More Power On Amoled Screen?
Jul 21, 2010So battery life isn't a huge issue with me, but I want to use a live wallpaper. So my question is what color uses more power on an amoled screen? Black or white?
View 1 Replies View RelatedHTC EVO 4G :: Color Issue With Screen
Jun 29, 2010Okay so I just picked mine up on Monday and immediately thought the color looked a bit off... but I have nothing to compare it to. The main area I notice it is in the texting screen with the keyboard up. The keyboard seems like a really light gray color and unnatural. This is the third hardware version of the phone. I'm not sure if I'm just being anal but I'm just wondering if there were screen issues like this?
View 5 Replies View RelatedMotorola Droid X :: Screen Color
Aug 4, 2010got my new droid x today from verizon to replace my old one. have a few questions my old one the buttons where loose was that something to worry about? ive seen a few where they dont wiggle at all and some that do. and second question was the screen for the NEW one i received today has a darker brown/redish hue to it where the old one had a blue close to white hue. and the old one was alot brighter too. what you all think should i not worry about the buttons and keep my old one. or keep the new one where the buttons are tigher and has the brown/redish hue.
View 5 Replies View RelatedChanging Phone Screen Color
Feb 3, 2014I am writing an app that requires some wait time for the user. During this wait time I would like to blink/change the entire (phone) screen, say, red->yellow then repeat until the app is done. How can this be done? Does this involve "accessing" the phone's graphics card/kernel?
View 1 Replies View RelatedAndroid :: ListView With Alternate Color And On Focus Color
Jun 17, 2010I need to set alternate color in list view rows but when i do that it removes/ disables the on focus default yellow background
I tried with backgroundColor
rowView.setBackgroundColor(SOME COLOR);
also with backgrounddrwable.
CODE:.........
But it wont work. is there any way we can set background color and on focus color simultaneously which will work.
Android :: Selection Color And Text Color In Whole Project
Apr 22, 2010Is there any process to change the default text color white to "Black" and default selection color of android "orange" to "Blue" for whole project. i am using Eclipse for Android development.
View 3 Replies View RelatedAndroid :: Use Own Color Instead Of Default Orange Color For Selection
May 23, 20091. I want to use my own color for selecting ui views.
By default, android shows the selected view with background as orange. I want to show the view background color as red.
2. In the same way, I want the same behaviour should be applied to whole application.
Android :: Setting Color In Two Different Ways Color/color1
Mar 19, 2010I have seen this example:
@*android:color/secondary_text_light
What's that * asterisk doing there? What is the difference when using or not?
Android :: Customize Color Of CheckMark Color In A Dialog
Aug 16, 2010How to customize the color of the CheckMark color in android in a dialog. Currently , By default, the color of the checkmark is green by default. I would like to customize it to a different color of choice
View 2 Replies View RelatedGeneral :: Color Profiles And Screen Calibration?
Aug 7, 2012Preferably being able to load color profiles like sRGB or Adobe RGB directly. I'm not reffering to simple RGB settings or Gamma tweaking.
The reason I'm asking is that I work in 16 bit float mostly and got a perfectly calibrated IPS NEC nicely working with a 12bit LUT and also 2 calibrated TN panel screens.
The final image goes to 8bit PNGs and JPGs with sRGB embedded. Now the difference between the final outcome on the IPS screen and the TN ones and the one displayed on 4 different android mobile phones I got available for testing is extremely big. So big, that just everything is off. I thought that embedding color profiles might cause this but using other common profiles or none at all still were extremely off.
I'd like to point out that the image is not necessarily bad, it's just wrong knowing how the end result looks on perfectly calibrated monitors at home or at work.
I'm just surprised that there is close to no information available on how to properly view imagery with embedded profiles considering that the internet is full of fancy mobile phone screen tests and benchmarks nitpicking every single micro millimeter on a screen light years away from normal use conditions. (At least they don't take into account that probably 60-80% of the images average users view on their mobiles are crappily compressed Facebook .jpgs and the rest photographs shot on mobile cameras..but that's not what the thread is about.)
Is there really no way to counter factory presets? It's like with TVs on factory or even worse shop presets with shiny oversaturated colors and crushed contrasts, but on TVs you got the chance to turn the crap off at last.
Android :: Get Pixel Value From Display?
Jul 14, 2010I'm not even concerned with the camera per se. I want at the closest thing to the display screen. Meaning: it could even be the desktop the user is looking at, completw w/ the background and the icons she moves back and forth.
Let's say, at time t=1 sec, the app goes to pixel (78, 300) on that display and obtains its value. What may be at (78, 300) could be a portion of the icon or some speck of tree leaf on the photo being used as desktop background.
I'm familiar with BitmapFactory.decodeFile() for getting at the pixel contents of a file. But what about the display?
Android :: OpenGL ES Pixel ?
Aug 24, 2009I am new to Android and OpenGL world. I've created a new ap using openGL ES. The package is attached with this mail. Android Simulator LCD size is 320 x 455 and i've set same size for OpenGL Viewport. But For creating visible rectangle i've to use vertices, which are of very high value.
E.g.
CODE:.....................
Samsung Behold 2 :: Screen - Color Banding - Flickering
Jan 16, 2010Just wondering if anyone else had noticed faint flickering issues with their Behold 2 screens? I especially notice it with smooth gray scale gradients, soft focus wallpapers, or solid color mid tones. Also, some color banding in grey mid tones... looks like faintly alternating horizontal lines of green and magenta. I work in digital imaging professionally, so I really notice such things. Can't decide if I'm being overly critical, or if my phone has an issue.
View 17 Replies View RelatedHTC Incredible :: How To Change Background Color On Email Screen?
Sep 4, 2010Can someone please tell me how to change the background color on my e mail screen or recommend an app that I can use to do this ? The small black letters on the white background are hard for me to see. Maybe something similar to Handsent ?
View 4 Replies View RelatedGeneral :: App To Control Screen Contrast / Gamma And Color?
Aug 31, 2011I have looked around different forums hoping to find an app or setting info which allows to modify the screen color, contrast and Gamma . I haven't been able to find any .
I have a Vega Tegra2 replica which has high screen brightness ( faded black colors ) and I am running Vegacomb 8.1 on it.
if such an app or modification exists?
Android :: How To Read Pixel Data?
Jun 24, 2010File file = new File(fileName);
Iterator iter = ImageIO.getImageReadersByFormatName("Reader");
ImageReader reader = (ImageReader) iter.next();
ImageReadParam param= reader.getDefaultReadParam();
ImageInputStream iis = ImageIO.createImageInputStream(myFile);
reader.setInput(iis, false);
BufferedImage myJpegImage = reader.read(0, param);
How can i write equivalent codes for above codes on Android? Are there any hints how to read pixel data?
Android :: Pixel Format Conversion In SF
Nov 26, 2009I am looking at the source code of a Camera Preview application and learning that the preview buffers coming from the sensor is in YUV422 format. However, this preview frame is showed on the display in RGB. Can someone please let me know where the pixel format conversion happens? Is it inside Surface Flinger? If yes, can you please point me to the code?
View 5 Replies View Related