resolution

How to define DPi for a new JPG image?

由 ↘锁芯ラ 提交于 2019-12-20 06:47:35
问题 I'm going to create a new JPG image with PHP. How can I set the DBi value of a new JPG image. Dirk 回答1: JPG is a Pixel format that doesn't really know physical dimensions like Dots Per Inch. All you can do is write a dpi value into the file's Metadata as assistance for further processing, but it's just a recommendation and it can't be done using the GD library. You would have to use an third-party library for this. See e.g. the second answer to this question: How do I add exif data to an

Android Studio Designer displaying widgets & fragments differently than my phone

由 纵饮孤独 提交于 2019-12-20 06:26:26
问题 I'm having problems with how items appear in the Android Studio Designer and my phone. The first problem is that widgets & fragments appear differently in the designer/emulator than on my phone. I have tried lowering the resolution in the designer to test other device resolutions but it still appears differently on my phone despite the resolutions being relatively the same. Designer view: http://i.imgur.com/5kZKFDd.png HTC Desire 510: http://i.imgur.com/SqDiyBy.png The designer view is using

Two screens with the same dimensions but different resolutions

由 独自空忆成欢 提交于 2019-12-20 05:16:08
问题 Assume we have two android devices with the same screen dimensions, but with different resolutions. Is the following true or not: if dp unit is used to set the sizes of all views, then both screens will display the same amount of contents and the only difference will be the crispness of the views. 回答1: If the screens are the same physical dimension but have a differing dpi and you've used the dp (Density-independent pixel) then they should be the same as this is the point of the dp unit. This

monogame screen resolution is incorrect

由 醉酒当歌 提交于 2019-12-20 03:09:10
问题 Monogame, or XNA really, is reporting the wrong screen resolution on my Surface Pro 3. Using GraphicsAdapter.DefaultAdapter.CurrentDisplayMode.Width and Height returns dimensions of 800 x 600, which is incorrect. So, I cannot set up my game size correctly. I've been using this code without problem on an Acer V5 and can set the game resolution to a size I expect. This is because the GraphicsAdapter reports the correct screen size. Whether using it as is, or docking the tablet with an external

To imread Parula image in Matlab without losing resolution

由 青春壹個敷衍的年華 提交于 2019-12-19 05:48:02
问题 There is no bijection between RGB and Parula, discussed here. I am thinking how to do well the image processing of files in Parula. This challenge has been developed from this thread about removing black color from ECG images by extending the case to a generalized problem with Parula colors. Data: which is generated by [X,Y,Z] = peaks(25); imgParula = surf(X,Y,Z); view(2); axis off; It is not the point of this thread to use this code in your solution to read the second image. Code: [imgParula

To imread Parula image in Matlab without losing resolution

由 半城伤御伤魂 提交于 2019-12-19 05:47:34
问题 There is no bijection between RGB and Parula, discussed here. I am thinking how to do well the image processing of files in Parula. This challenge has been developed from this thread about removing black color from ECG images by extending the case to a generalized problem with Parula colors. Data: which is generated by [X,Y,Z] = peaks(25); imgParula = surf(X,Y,Z); view(2); axis off; It is not the point of this thread to use this code in your solution to read the second image. Code: [imgParula

Decrease image resolution in OpenCV

由 别来无恙 提交于 2019-12-19 04:38:22
问题 I'm using OpenCV to capture images from A4Tech camera. When I try to decrease image resolution, image assertion fails: CvCapture *camera = cvCreateCameraCapture(1); // 0 is index of Laptop integrated camera cvSetCaptureProperty( camera, CV_CAP_PROP_FRAME_WIDTH, 160 ); cvSetCaptureProperty( camera, CV_CAP_PROP_FRAME_HEIGHT, 140 ); assert(camera); // This is passed while(true) { // .... IplImage * image=cvQueryFrame(camera); assert(image); // This fails. (Line 71 is here) // .... } Output is:

how do make my website resize automatically when the screen resolution changes?

由 对着背影说爱祢 提交于 2019-12-19 04:31:22
问题 when i use my website on a resolution that is not 1920x1080 it zooms in so i have to scroll left and right to view the full content. how do i make the website resize to fit the resolution and display correctly. <!DOCTYPE html> <html lang="en"><head> <meta charset="utf-8"> <meta name="generator" content="CoffeeCup HTML Editor (www.coffeecup.com)"> <meta name="dcterms.created" content="Fri, 24 Oct 2014 20:29:09 GMT"> <meta name="viewport" content="width=device-width"> <meta name="description"

how do make my website resize automatically when the screen resolution changes?

由 夙愿已清 提交于 2019-12-19 04:30:57
问题 when i use my website on a resolution that is not 1920x1080 it zooms in so i have to scroll left and right to view the full content. how do i make the website resize to fit the resolution and display correctly. <!DOCTYPE html> <html lang="en"><head> <meta charset="utf-8"> <meta name="generator" content="CoffeeCup HTML Editor (www.coffeecup.com)"> <meta name="dcterms.created" content="Fri, 24 Oct 2014 20:29:09 GMT"> <meta name="viewport" content="width=device-width"> <meta name="description"

how to change image resolution in objective-c

由 China☆狼群 提交于 2019-12-18 12:37:15
问题 I need to change the resolution of the existing image in objective-c just like Apple's Preview application Tools->Adjust Size...->Resolution. Please let me know the possible solutions. 回答1: Here's a great sample I've used - http://weblog.scifihifi.com/2005/06/25/how-to-resize-an-nsimage/ From that sample, you can write resizedData to the file - and this will be a resized output in tiff format. UPDATE: here comes the NSImage category implementation, that allows to save NSImage instance with
订阅 resolution