Android :: Web Application Dev - Zoomed Image Quality
Jan 11, 2010
Last year, I implemented a web application specifically designed to display large jpgs (approx 950px x 1000+px) in a magazine style format on WebKit for the iPhone. It works great there, as well as any other WebKit-enabled device - until Android.
On other devices, tapping zooms the image, then there is a momentary pause while the image is rendered and sharpened - so text retains clarity. The pause/render/sharpen never takes place on the Motorola phone or the AVD I'm running though Eclipse. Even taking the web app out the equation, going directly to the image in Android's flavor of WebKit shows the same issue.
I've tried outputting jpgs with a much higher density: 165dpi, up to 600dpi - there is some clarity increase, but not enough.
Are large jpgs just a lost cause w/Android? Is the render/sharpen on zoom something that just hasn't made it's way into Android's version of WebKit?
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Jul 12, 2010
I'm a developer of live wallpapers. these days I've faced the image issues for users who have big screen phone(like evo user). So I wanna improve my image quality. any idea have?
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Nov 17, 2010
I need to scale down images coming from a Network stream without losing quality. I am aware of this solution Android: Strange out of memory issue but it is too coarse - inSampleSize is an integer and does not allow finer control over the resulting dimensions. That is, I need to scale images to specific h/w dimensions (and keeping aspect ratio). I dont mind having a DIY bicubic/lancoz algorithm in my code but I cant find any examples that would work on Android as they all rely on Java2D (JavaSE). EDIT: Ive attached a quick source. The original is 720x402 HD screen capture. Please ignore the top 2 thumbnails. The top large image is resized automatically by android (as part of layout) to about 130x72. It is nice and crisp. The bottom image is resized with API and has severe artifacting. Code...
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Oct 19, 2010
Now I'm using the follow code to scale down the image downloaded from internet at runtime. But the result is not good enough.
Bitmap.createScaledBitmap(srcBitmap, dstWidth, dstHeight, true);
Any help?
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Mar 17, 2010
I want to display an image from an url with an Webview at Android. With Android phones with Version 1.5 and 1.6 there is no problem. but the same pic and the same code on an AndroidPhone with Version 2.0 and the pic is totaly pixelated. Like Android is resizing the image first to a smaller one and then resizing it back to "normal" size. Unfortunately its important to display the pic without any quality loss. I tried to integrate it in the sourcefolder to show it as an normal image, but at Android 2.0 i get an exception because the image is to big. (At Android 1.6 there is no problem) Any ideas how i can display the image without quality loss with Android 2.0 ?
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Sep 10, 2010
Does 2.2 improve the quality of still pictures taken? I know that it lets you record 720p video now...so I'm interested to know if 2.2 also improves images?
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Feb 17, 2010
I am working on displaying an image and placing an icon on top of it... clicking the icon will show an enlarged version of the image...
though putting the imageview holding the image in a LinearLayout scales the image to the width of the dialog, the problem is that i need to display the image in a dialog but the image is very high resolution and hence is far bigger than the width of the dialog...
I need to show the actual image with scrolling for both ways to see the whole image... But whenever i try putting the imageView in a scrollview the top of my imageview is blank... and again though image scrolls downwards the width is scaled to the width of the dialog...
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Jan 24, 2010
I want to do an image gallery like in iphone. I want to show low quality (pre-resized) images and when the image is active I want to process the big image and show the result in the gallery. I have two questions. How to attach a listener on the animation stop in gallery? And how to access an image after this action?
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Mar 29, 2009
Eldev LLC is looking for android developer familiar with google image search API to write a new application.
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Oct 17, 2010
I notice when ever I set a wallpaper the image quality is crap. all the wallpapers i try are at least 800x480 but most are normal computer wallpaper size so they should fit fine after being cropped.
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Sep 2, 2010
This is for anyone who links their facebook contacts with phone contacts.I set this up yesterday and it works great the problem i have is when i get an incoming call there picture pops up but the image quality is so horrible you can't even tell what it is. I am used to my Hero showing a really good version of there facebook pic. does anyone know how to fix this. i want to use the facebook pics for my contacts but they just look horrible.
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Aug 1, 2010
Whenever I set a photo for my lock screen, my Eris sets it but the quality of the photo always looks horrible from the original. I have tried using super high-res as well as PNGs instead of JPGs but it looks like crap when I save it. Is there anyway to make it so it doesn't downgrade the quality of my photos when I set them for my lock screen?
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Jun 11, 2010
In web view, the overview mode method does not works in Android 1.6. Because of the API Level restrictions. is there any possible to show the web view in zoomed out completely? Any Idea?
WebSetting.Zoomdensity is available in API Level 7 only.
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Sep 9, 2009
i am capturing video with the code below. But there is problem on video quality, that is, when I capture video with applicaiton I wrote its quality is not as well as video quality of telepohnes' which is recorded by Camcorder...................
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Jun 3, 2010
how can I get my fixed width site to always appear "fully zoomed in" on webkit (iphone and android) browsers? right now, it looks fine on an iPhone and "too small/zoomed out" on an Android phones that have higher resolution.i'm trying this viewport: <meta name="viewport" content="user-scalable=yes, width=device-width, target-densityDpi=device-dpi, initial-scale=1.0" />
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Jun 3, 2010
I recently dl'd google scoreboard... my buddy at work recommended it. He has incredible too. The icons didn't fit properly and some text on bottom was cut off so I told him it was crap. He showed me his incred and the app looked fine. I then tried all my apps and noticed that a bunch of games I haven't played in weeks were now showing up with this zoomed in look.... others work/fit flawlessly. These games did work fine previously. I'm assuming some other app is to blame but have no idea how to go about it.
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Jul 29, 2010
I thought it was just the screen being so large but now i've realized that this camera is permanently zoomed. Its not because the camera sticks out a few mm either... In order take pictures I have to physically take a couple steps away from what I am trying to take... Has anybody else noticed this? At first I thought it maybe a hardware issue with the camera but I think this maybe related to the software maybe permanetnly digitally zoomed in?
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Aug 26, 2010
on the camera in OS 2.1 the camera is permenantly zoomed in... if you want to take a picture you have to litterally back up a few steps.... 2.2 froyo has fixed this issue but ONLY for the camera... not the video... for example I took a picture in camera mode, of a glass that took up the whole screen and just fit in the picture... i then switched to video camera mode and didn't change anything else and the video then expanded across the whole screen and was zoomed in and only half the glass could be captured!!! I just want to point this out and any of you guys can feel free to give it a try... just wanted you all to know i'm not crazy! and this is not a hardware issue like i initially though this is simply a software issue... and when the camera is stretched across the screen this causes it to be permenantly zoomed ... so i'm happy 2.2 fixed this for the camera mode but disapointed it's still in the video recording... but it proves my point... now i'm going to try to upload my examples...
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Feb 24, 2010
has anyone noticed that viewing picz while zoomed in displays really poor image quality? this only seems to happen in the 2.1 gallery. i noticed this way back when the apk for 2.1 gallery was released and i tried it out. double tapping to zoom in resulted in a very pixelated and low quality zoom while in regular 2.0 gallery, there was no problem. pics zoomed in still displayed crisp sharp quality. with all the custom roms nowadays, this problem is still there. I'm using sholes 2.0.6 still, with my camera taking highest quality pics with highest resolution. I'm pretty sure this is just isolated to viewing pics in 2.1 gallery because if i viewed the same pics in camera mode, there's no problem. no one else noticed this? is 2.1 gallery just broken like that or what?
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Jul 21, 2010
When I select a picture from the "My Pictures" menu, I then hit the right soft key to get into the "Options" menu and I scroll down to and select the fourth option, "Zoom/Rotate". When I am finally done zooming/ rotating the picture, it seems as though I'm left with no option to save it. I've pressed every button that I could think of and nothing seems to work. I can't imagine that this option is not available.
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Aug 21, 2010
Anyone have known any application from android market to improve the sound quality of the videos stored in media scape? i would better download it if ever there is that application since there is no update in the software...
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Aug 9, 2010
I'll keep this one short - I just want to know if anyone has tried some of the available camera apps, and actually noticed better Incredible photos with less noise, brighter indoor photos without flash, color rendering, or better focus. If you could explain any theoreticals on how software interacts with the hardware to produce such improvements, that would be appreciated too.
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Jul 21, 2010
I use http://stackoverflow.com/questions/541966/android-how-do-i-do-a-lazy-load-of-images-in-listview/3068012#3068012 to load images in a ListView and a GridView. It works but the images are loaded form bpttom to top. How to fix that?
Bonus Question: Can I use a loading animation in a image view while the real image is loaded? Right now it's just a default image.
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Sep 11, 2009
We have had a couple users on the myTouch phone have issues in our application. It apparently is force closing on them. I am not sure of why it is, and the 1.6 SDK is not out yet. Has 1.6 been released into the wild? If so, do you know where I can download the image for my G1 dev phone to test w/?
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Apr 19, 2010
I am devoloping an application of image editor. I always do it by using the resources in the drawable carpet. Now I changed it to use the resources in the SD card. I don't change the code of the image access but the program always produce an error if I intent to set the value of a pixel. The program works correctly if I try to read the pixel but if I try to modify it fails. I think this is a permissions error but I added the following: <uses-permission android:name="com.android.editorImagenes.permission.WRITE_EXTERNAL_STORAGE"></ uses-permission> <uses-permission android:name="com.android.editorImagenes.permission.WRITE_OWNER_DATA"></ uses-permission> And everything remains exactly the same. I'm desperate. A thing happens is that if I try to do the scaling or rotating the image using a matrix postrotate, etc, the program works correctly and as of this moment I can use the SetPixel without causing error.
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Aug 8, 2010
I'm looking for a decent image editing, viewing, and organizing app. Something thats better than the default that comes with the htc EVO, but nothing over-kill. I'm not looking for CS5 for my phone.
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Jan 9, 2010
hi, i run my application in an emulator/device automatically one drawable image other than default image i used my image coming for my application as background.how can avoid it?
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Mar 31, 2010
I am trying to display the image on the ImageView object. But the setImageResource fails to display the image. Here is my XML file looks like:
<?xml version=*"1.0"* encoding=*"utf-8"*?>
<LinearLayout xmlns:android=*"http://schemas.android.com/apk/res/android" *
android:orientation=*"vertical" *
android:layout_width=*"fill_parent" *
android:layout_height=*"fill_parent"*>
<FrameLayout
android:orientation=*"vertical" *
android:layout_width=*"fill_parent" *
android:layout_height=*"fill_parent" *
android:layout_weight=*"1"*>
<ImageView
id=*"@+id/batteryLevelview"*
android:layout_width=*"wrap_content"*
android:layout_height=*"wrap_content"*
android:layout_gravity=*"center"*/>
</FrameLayout>
</LinearLayout>
Here is my code:
@Override
*public* *void* onCreate(Bundle savedInstanceState) {
*super*.onCreate(savedInstanceState);
setContentView(R.layout.*main*);
ImageView batteryLevelImage = (ImageView) findViewById(R.id.* batteryLevelview*);
batteryLevelImage.setImageResource(R.drawable.*notconnected*);
}
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Mar 6, 2009
Eldev LLC is looking for android developer familiar with flickr / google image search API to write a new exciting application for us. Possibility of long term relationship and full time work is high if the job is done right.
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Oct 29, 2010
I have run into an requirement of my application that i cant find a way to do this.
I need my application to be fullscreen and no title bar (done), and this application will have a background image. However, all the activities/views of my application must be transparent/translucent so the application background will be visible all the time behind the information i am displaying.
Basically i would like to have this behavior
http://www.geeky-gadgets.com/wp-content/uploads/2010/05/amazon-kindle-android-app.jpg
supousing that the image you see is not the phone wallpaper, but the application background image. What would be the application configuration in the manifest file and what would be the configuration for eacy activity/view?
I also noticed that, i need to setup each activity to be fullscreen without title bar. Is there a way to do this globaly in the application so all activities will behave this way?
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