I want to resize the image to custom width and height(eg: 225 X 225). And filled the remaining area with green background to get the exact custom image size. Using .net imagemagic library.
Fist image:
Resultant Image:
Related
I have several images with each image having grid of small images with different sizes with white background. I want to separate each small image from the bigger grid image and save it separately . How can I achieve this in python ?
content and size of small images keeps on changing with large image to image, only thing which is constant is white background to separate each small image as shown below.
sample image
I created an image which is intended to be used as background image of UIButton. This is what I get:
The image looks great in Photoshop, but when used in iOS application as a button image it looks distorted(the lines are not strait and definitely not as smooth as in the original). How can I avoid this effect?
EDIT:// Preview window
Are you sure that aspect ratios of button and image are the same?
Another thing - use appropriate image size for button image, e.g button view is 30px high, then you need add 30px(#1x), 60px(#2x) and 90px(#3x) images. If you just add an image with 1000px it won't look good, take more disk space and reduce performance.
I'm trying to figure out the best way to approach this. I'm looking to take an UIImage, detect if there are any shapes/blobs of a specific RGB color, find their frame and crop them into their own image. I've seen a few posts of people recommending OpenCV as well as other links similar to this - Link
Here are 2 screenshot's of what I'm looking to do. So in Example 1 there is the light blue rectangle with some text inside it. I need to detect the blue background and crop the image along the black lines. Same for the red image below it. This is just showing that it doesn't matter what's inside of the color blob. Example 2 shows the actual images that will be cropped once the 2 color blobs are found and cropped. All image will always be on a white background.
Example 1
Example 2
This question goes way beyond a simple answer. What you will need to do is access the raw data on that image based on the color then create a frame to crop. I would find the upper, left,right, lower frame of all matches of that specific color then make a frame out of it to crop the image.
Access the color
Get Pixel color of UIImage
Crop the image
Cropping an UIImage
How can we change the Hue and Saturation of an Image inside a PictureBox?
Below is a screenshot of an app I wrote for Windows Phone. The first image shows a blue note icon, the second, shows an orange-red note icon.
Basically what I am trying to accomplish is change the hue/saturation of certain UI elements (toolbar icons (with images)) when hovered-over. Instead of loading all these images and having 2-3 different color variations for each image. I would prefer to just have 1 image and just programmatically change the hue and saturation accordingly when the image is hovered over:
Original image:
Altered image (desired effect when changing hue/saturnation programmatically):
Server Config:
Windows Server 2003
IIS 6
ColdFusion 8 Standard Edition
Java Version 6 Update 18
I have a ColdFusion application that allows users to upload images that will be added to an existing PDF. When the images are added to the PDF, they have to fit within a minimum/maximum height and width, so the uploaded image needs to be scaled to fit.
For instance, let's say the minimum height and width for a given image is 100x100, and the maximum height and width is 200x200, and the user uploads an image that is 500x1000. I use the logic below to scale that image down without skewing the image (it keeps its original shape) to 100x200. For an image smaller than the minimum, it is scaled up (in the example above, a 50x50 image would be scaled up to 100x100).
The problem I'm noticing is that when ColdFusion scales the image using its built-in functions, it reduces the resolution to 72dpi. Is there a way to prevent this loss of resolution, as the images are being added to PDFs which need to be print-quality?
Here's the [scaled-down] code I'm using to scale the images:
<cfscript>
imagePath = "/uploads/image.tif";
scaledWidth = 100;
scaledHeight = 100;
scaledImage = ImageNew(imagePath);
ImageSetAntialiasing(scaledImage, "on");
ImageScaleToFit(scaledImage, scaledWidth, scaledHeight);
</cfscript>
I think you may want to skip scaling the image at all and add the original image to the pdf document. Then have whatever pdf creation tool you are using "resize" and position the image on the document canvas. Similar to setting width and height on images in html to something other than its native resolution. I have not had to add images to PDFs docs like you described but this post might point you in the right direction:
Adding a dynamic image to a PDF using ColdFusion and iText