Android :: Applying Effects To Camera Viewfinder
Dec 11, 2009
One approach I've looked at is to use the preview callback, asking for a JPEG buffer. Unfortunately, the HTC phones I've tried this on all call back at several second intervals and give me an NV12 buffer regardless of the pixel format you specify. (Anyone know the behaviour on a droid?) I can code my way around the NV12 hassle but I can't exactly do much when the callbacks are so seldom; I want around 10 fps.
The approach I was considering was making an opencore codec for mjpeg. Which leads me to two questions before I start:
1) can third-parties make and install opencore codecs, or is this strictly locked down? Is it to just drop an .so in the right folder, or?
2) do the HTC phones use the default encoders? (i.e. will using the same way the default opencore reference codecs get their pixel buffers work on the phone?)
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May 4, 2010
so far I'm using the FxCamera app. Just took this shot outside work
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Jun 11, 2010
I'd like to make an Android app that lets a user apply cool effects to photos taken with the camera. There are already a few out there, I know, but I'd like to try my own hand at one.
I have been googling and stack-overflowing, but so far I've mostly found some references to published papers or books. I am ordering this one from Amazon presently - Digital Image Processing: An Algorithmic Introduction using Java
After some reading, I think I have a basic understanding of manipulating the RGB values for all the pixels in the image. My main question is how do I come up with a transformation that produces cool effects?
By cool effects I mean some like those in these iPhone apps:
I already have quite a bit of experience with Java, and I've made my first app for android already. Any ideas?
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May 28, 2010
Just wondering if anyone had taken the time to try out the different camera effects, a quick search of this forum did not produce many results. My guess is some of you have some really cool looking shots using these different settings. So, here ya go, 2 of my favorites, using the Negative and Solarize settings
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Jun 28, 2010
I am developing an camera application where i want to capture image and give special effects. can anyone tell me how to work on preview of camera image taken by camera which i have include in application. My application is capturing image and saving it in device.But i want to show the new image according to user's choice for effects(whichever he wants) from inside the application.
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Nov 4, 2012
i have installed the 4.2 camera app on my galaxy nexus and i cant find the facial effects/ backgrounds like the ics and jelly bean camera apps had? did they remove it completely or just hid it somewhere?
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Apr 11, 2014
an Alcateo OT 6030X (which is known around here as Orange San Remo - I'm from Romania). I just bought the phone a few days ago from someone, and while everything seemed fine at first, I came across a problem with its video camera.
When I switch to video, I get an icon on the top of the screen that allows me to select some video effect [big moth, big eyes, stretched face], but when I activate one of them, the camera just freezes, and sometimes the whole phone too. I tried a full factory reset the other days and everything worked correctly until last night. I even checked that specific feature yesteday morning and it was working perfectly, but last night it just froze again. I did install some apps I commonly use yesterday, so my suspicion is that one of the apps is to blame. I have attached the details of my phone, as well as all the apps I currently have.
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Jun 12, 2009
When you turn on the phone, after the G1 screen, there's a black screen with the word Android in blue, and a glossy shine running across it. Can you tell me how imitate that effect? Maybe point me in the right direction, like what classes to look at?
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Jul 26, 2010
As shown in this website, I like the sketch effect. Anyone can help?
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Dec 3, 2008
If you guys want your phone to be able to use transition effects, just like the ones on the Android SDK.
First go to the Android Market and search for "AppsInstaller". One whole word. Install, then proceed to download the APK files i have uploaded for you, APK Tools. Make sure you UNZIP them!
Copy the files you just downloaded to the root of your microSD Card. Run App installer and Look for Development tools. Install that. Click on allow then finish install. Then run the program Dev Tools.
Click on Development Settings and Change the following.
Windows animation scale to 1x
Transition animation scare to 1x
Light hinting
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Oct 9, 2009
I have pretty common question: is there any bug-free way to implement sound effects in a game?Or we only have unpredictable SoundPool with its horrible bugs? Or MediaPlayer that can only play one sound at once and which is not solution for a game at all?In fact, it is disturbing question for numerous developers right now!
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Apr 24, 2010
Quite a simple question, Is it possible to notice vibrations in the android emulator?
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Jan 10, 2010
I am trying to apply common style to different textview that can be either defined in a layout xml file or programmatically and that does not seem to work for some attributes: My style in styles.xml is:
<style name="ListName"> <item name="android:colorForeground">#f0f</item> <item name="android:padding">4sp</item> <item name="android:textSize">30sp</item> <item name="android:textColor">#CCC</item> <item name="android:gravity">left</item> <item name="android:typeface">serif</item> <item name="android:textStyle">bold</item> <item name="android:colorBackground">#999</item> </style>
In my layout xml i have <TextView style="@style/ListName" ...></ TextView> and in my activity java class i have: TextView nametv = new TextView(this,null,R.style.ListName); However some parameters does not seem to work very well: - textStyle to bolditalic does not seems to be recognized - textColor/colorForeground/colorBackground does not work at all. I have been through the documentation, but could not find precise reference documentation for that attributes, nor sample for the color setting.
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Oct 23, 2010
i'm trying to define a theme for an appwidget, and have it applied at the application level. i have a theme like, <style name="theme.dark"> <item name="android"background">#000000</item> </style> in my manifest, i set android:theme="@style/theme.dark". however, when i run the appwidget, it does not pick up the items from the style. i tried setting style="@style/theme.dark" on an individual element in my view layout, and that does work ... but that's not what i want. i don't want to call out a specific style="..." for each element in my view. this page...................
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Apr 8, 2010
i am creating a picasa web album client for my major project. i've almost finished with the coding.its just that i find my UI very dull.its very boring. looks like a command line User Interface. obviously i want to change that and want a good attractive gui for my project. can anybody tell me how to create a good GUI which is eye catching and attractive? please give me the code because it is very difficult to interpret the custom theme option at android.com can't comprehend how to use it. it'll be better if anyone can post a tutorial. there are some questions that i want to ask. can i use flash? is there anyway to use css templates for this purpose? i dun want my gui to be black and white and dull
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Jun 15, 2009
Several users reported that after starting our application on HTC Magic it only shows a blue screen with music and sound effects. It work well on G1 with 1.5 though. The application is using SurvaceView/ OpenGL ES with { EGL10.EGL_DEPTH_SIZE, 16, EGL10.EGL_NONE } EGLConfig attributes.
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Dec 28, 2009
I am creating an android app that basically records an applies an "Effect" on the audio track then plays it back. I got my app to record an play back but I am stuck an not sure where do go from here. I have been Googling for days now trying to find a open source audio library or some way to change the audio after I record it. I currently have it setup to play back using SoundPool an I't lets me speed up an slow down the audio. I would like to do things like change pitch an add echo etc. I will appreciate any responses because I am totally stumped right now.
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Apr 11, 2010
I have a problem in the Preferences Activity, in the main preferences the theme shows ok, but if I get to a sub preference, the theme gets messy, it is not white as it should, it is all dark, and the font is black so you can't see much, and when I start clicking on any items they will get sometimes white as they should but revert to black soon after. This is only happens on 2.1, in both the real device and emulator. Tested on the emulator running 1.6 and it was working correctly.
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Mar 7, 2010
I want to apply theme over setting application wide. So I implemented below code but there was no effect.
1. AndroidMenifest.xml
<application android:label="@string/settings_label" android:icon="@drawable/ic_launcher_settings" android:theme="@android:style/Widget.ListView" android:taskAffinity=""> -> added Widget.ListView style provided in android system and I changed style.xml file like below
2. FrameWork/base/core/res/res/values/styles.xml
before change : <item name="android:listSelector">@android:drawable/ list_selector_background</item>
After change: <style name="Widget.ListView" parent="Widget.AbsListView"> <item.................................
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May 29, 2010
Is their any way to apply a style resource to customize the Item Border in the Gallery Class with Android?
I'm trying to hide or change the color of the default Grey border but by the looks of things this isn't possible?
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Feb 17, 2012
I'm working on a puzzle game for Android 2.2, what I want to do is a simple fade-in fade-out of the whole game screen, during level changing. I tried with an AlphaAnimation from 1.0f to 0.0f and vice-versa, and it works perfectly if I start it from a View, but if I try to start it from the SurfaceView which I used to write my game engine nothing happens.
I put a completely black ImageView on top of my surfaceview, and applied the animation to this imageView. This is my layout
Code:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="<not allowed to post external links...>"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
[Code] ......
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Dec 6, 2009
My camera stopped working. When I click my camera application I get the message "The application camera (process com.android.camera) has stopped unexpectedly. Please try again". It's just a blank screen?
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Apr 9, 2009
When ever I try to animate a view using a simple xml based animation, it seems to have default interpolator set of some kind as the motion is not truly linear.
Is there a way to set the default animation interpolator to linear and remove the lag in the start/end of the animation.
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Jan 4, 2010
So I am pretty computer savvy but just getting into the phone scene. Wondering what site is best for the hacker side talk of phones?
Androidcommunity vs Androidforums vs XDA dev forums?
Which is better for instructions on rootings and applying custom ROMs?
Which is better for finding ROMs?
Which has more users?
Which has more experts?
Anyone familiar with the other site or one I may not know about can fill me in a bit? I seem to like this site the most but if there is more information elsewhere, I may need to pool my resources. I would prefer for android forums to be my 1 stop shop n go.
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Mar 22, 2010
I am trying to find solution where I can apply round corners to an image. 1) I have tried to set android:background and in drawable.
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Feb 7, 2009
I'm trying to make an image darker, but the image has some pixels transparent. I want to keep those pixels intact. I tried DARKEN and couple other filters, but they seem to alter transparent pixels as well.
Do you know if there is a way to keep transparent pixels intact while applying a color filter?
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Aug 29, 2012
I want to add functionality to an app to easily apply filters and such to images. Examples for the kinds of filters/effect I am looking for are Dithering, Blur, Black & White, Gray Scale, Invert Color, etc.
know any frameworks/libs that provide this functionality to be easily used in an App? Or a source that lists frameworks for Android.
I was only able to find a list of Android Libraries provided by OpenIntents.
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Feb 7, 2012
how to get a 3D effect as shown in the video ?
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Feb 7, 2014
I was wondering where the volume sound effects are. What I mean is when you go into settings --> sound-->volume ,and then change the volume, there is a sound that plays for each one. When I change the media volume there is a song that plays that I like. So where is the file stored. I am rooted and have a samsung phone.
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Aug 20, 2010
Do I need to wipe everything? DO I apply from recovery just like a ROM.
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