Like I can't remember iOS app icon pixel size developers a few, I often need to query different devices on the application size, in order to facilitate their own, convenient for everyone, I made the following chart for your reference.iphone, Ipodtouch, and general general application icons What is the pixel size? iphone and Ipodtouch apps need to apply all the icon pixels in general, and you might wonder why iphone apps need an ipad app icon because an iphone app can also run on ipad. Instea
Transferred from: http://www.cocoachina.com/appstore/top/2012/1105/5031.htmlLike I can't remember iOS app icon pixel size developers a few, I often need to query different devices on the application size, in order to facilitate their own, convenient for everyone, I made the following chart for your reference.What is the pixel size of the IPhone, Ipodtouch, and general-purpose app icons? iphone and Ipodtouch apps need to apply all the icon pixels in general, and you might wonder why iphone app
bit more perfectly.
Note: Both coalesceimages and optimizeImageLayers return New Imagick objects!
If you are more comfortable with shell operations, you can implement GIF animation thumbnails as follows:Copy codeThe Code is as follows:Shell> convert old.gif-coalesce-thumbnail 50x50-layers optimize new.gif
The generated new.gif is as follows:
New.gif
The convert version is smaller than the php version, which is caused by inconsistent API implementat
;
?>
2. Create a thumbnail in a directory and save
$images= newImagick(glob(‘images/*.JPG‘));
foreach($imagesas$image) {
// Providing 0 forces thumbnailImage to maintain aspect ratio
$image->thumbnailImage(1024,0);
}
$images->writeImages();
?>
The upload is only for js verification. It seems that I have only uploaded the file under the topic. It seems that this problem also exists in the upload of the Avatar (not tested). Click the topic image to edit and upload the image. Use the Firefox tamper data plug-in and start interception. Select a 2bb.jpg file (meaning a normal picture of a php sentence) and a 2bb file in the directory. php (reserved for backup) modifies the data in the tamaper data, and changes 2bb. change JPG to 2bb. php c
image is 1/4, which is called downsampling). Although the image is not blurred, however, you may feel that the image lacks some sharpness or color difference (but acceptable ).
It is represented by an image:
For the above two problems, I made a demo (Intranet access) mad here.
In the demo, 100x100 images are placed in the img container of 100 x, 50x50, and 25x25, respectively, and displayed on the retina screen.
Bar chart. You can see t
) img Tag Requires 400x600 images.
As a result, the number of Bitmap pixels is four times the original number. On the retina screen, the number of Bitmap pixels can be 1 to 1 with the number of physical pixels, the image is naturally clear (this also explains a question left behind, why is the canvas size of the visual draft × 2 ?).
There is another problem here. What if I use a double image under a normal screen?
Obviously, on a normal screen, the number of physical pixels corresponding to the
Like I can't remember iOS app icon pixel size developers a few, I often need to query different devices on the application size, in order to facilitate their own, convenient for everyone, I made the following chart for your reference.iphone, Ipodtouch, and general general application icons What is the pixel size? iphone and Ipodtouch apps need to apply all the icon pixels in general, and you might wonder why iphone apps need an ipad app icon because an iphone app can also run on ipad. Instea
The first is about the production of maps, referring to all the online map making ideas and code, with some of their own ideas, first on the map should be the role of the future to do a certain cushion, and the role of the collision, and then decided to map small elements, such as the game map 1000x1000 pixels, Then a small element is 50x50 pixels, so the pixels are stitched together and then stitched together into a single map. Perhaps 400 small elem
will also have close to 5,000 combinations of features. There are too many features that need to be computed for general logistic regression.There are a number of such problems, such as in computer vision car detection problems, for a car picture, you can easily identify this is a car, but in the computer or camera "eye", this is just a bunch of pixel digital matrix:So, for the car detection problem, we need a bunch of car pictures and a bunch of non-car pictures as training sets, training a cl
Let's talk about the menu in the Development of Google Glass gdk. (The last section is really JB rotten = This section is also in my opinion in the future, so I will write a little bit about it and wait until the technology is mature, and then I will come up with a complete set of tutorials !)
Let's take a look
Start :)
Remove the original topic first.
Remove Android: Theme From androidmanifest. XML, and edit our menu in RES/menu/Main. xml.
The glass menu has three options (in general): ID, t
At present, I started to write a note in the app.
Device/Screen
File Name (PNG)
Icon size (pixels)
IPhone and iPod
Application icon for iPhone (Retina Display)
Icon@2x.png
114x114
Application icon for iPhone
Icon.png
57x57
Settings/spotlight icon for iPhone (Retina Display)
Icon-Small@2x.png
58x58
Settings/spotlight icon for iPhone
Icon-Small.png
29x29
Launch image po
Nodejs traverses the folder and counts the file size.
I have been away from the company for more than two months. I wrote a lot of tools before, but on the day I left the company, I personally formatted all the accumulated tools and code over the past year. Today I think of a problem I encountered in my project. I will record it today.
When I was optimizing the memory, I encountered some images that were difficult to loading during loading. I found some skill icons with a size of
Nodejs traverses the folder and counts the file size.
I have been away from the company for more than two months. I wrote a lot of tools before, but on the day I left the company, I personally formatted all the accumulated tools and code over the past year. Today I think of a problem I encountered in my project. I will record it today.
When I was optimizing the memory, I encountered some images that were difficult to loading during loading. I found some skill icons with a size of
. flipY = YES;
2. You can specify a range to load only a rectangular area of the image.
The original size of this image is X.
[Java]View plaincopy
CCSprite * sprite = [CCSprite spriteWithFile: @ "lufy.png" rect: CGRectMake (0, 0, 50, 50)];
Only the 50x50 area in the upper left corner of the image is loaded.
3. You can directly input a texture object (CCTexture2D)
[Java]View plaincopy
// Create a texture object
CCTexture2D * texture = [[C
Recently, some netizens in the group asked the Cuda 2D gmem copy question. Yesterday, the Forum also asked the same question: copy a sub slice of source gmem to another gmem, the following describes in detail how to implement a kernel that is no longer needed:
Test (copy a sub-area with a size of 50x50 to the target gmem starting from the gmem area of 100x100 and the starting index is (25, 25):
Note:CodeTested
Speaking of cocos2d, You Have To Say ccspritebatchnode
Benefits of using ccspritebatchnode:
1. Reduce the bind Call of OpenGL ES. Here we will briefly describe the loading of slice. When an image is to be displayed, it will first be converted to texture and then loaded into the memory, because most GPUs know the extracted images (PNG is a compressed image, GPU can also process some compression formats, such as pvrtc), and then draw this image to the screen through OpenGL ES. When a scene
, omitted 1024x768 or 1024x748
Horizontal boot screen for Default-LandscapeRight.png iPad, omitted 1024x768 or 1024x748
Default.png iPhone default boot image, 320xlarge or 320x460
Default@2x.png iphone4 boot pictures 640x960 or 640x920
To use the above boot screen on the iPad, you also need to add it to info. plist.
Key: uisupportedinterfaceorientations.
Add Value
Uiinterfaceorientationportrait
Uiinterfaceorientationportraitupsidedown
Uiinterfaceorientationlandscapeleft
Uiinterfaceorientationlan
both the post and page content models. If you only want to select one, you can add the parameter:
add_theme_support( 'post-thumbnails', array( 'post' ) ); // Add it for postsadd_theme_support( 'post-thumbnails', array( 'page' ) ); // Add it for pages
Add the required row to functions. php.Next, specify the thumbnail size. There are two options: proportional scaling and cropping. Proportional scaling is like a 100x50 image with a size of 50x50. The im
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