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Questions tagged [image-manipulation]

Image manipulation is the term used to describe various operations applied to images such as resizing, removing noise, or alteration of colour depth.

Image manipulation is the term used to describe various operations applied to images such as resizing, removing noise, alteration of colour depth. These operations are usually performed to improve the quality of the image (such as the removal of noise) or to alter it so that the image file is better suited to its intended usage(such as resizing to meet display constraints on a mobile device).

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Codeigniter not working with Verots class.upload

I have encountered a problem I can't really figure out - I can't get the class.upload to work properly with CodeIgniter framework. To implement it I tried the code snippet supplied here but it is still not working. I've turned logging on and all I…
Pankucins
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How to use SIFR or Facelift with ASP.net?

Has anyone used SIFR or Facelift (FLIR) with ASP.net? I noticed that all the scripts included with FLIR are all PHP pages. I looked around but it looks like there isn't a good solution for image replacement for ASP.net.
patricksweeney
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Size of Image after watermarking

I'm curios what happens to the size of the host image after an invisible watermark has been inserted. I'm guessing the size will increase but by how much? For example, the cover image to be inserted is 1kb and the host image is 2kb. Since your…
stbb24
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Save Image Preserving Resolution in C#

I am trying to crop an image. I have found multiple ways to do this, however none are performing how I would like. Once the image is cropped, I am sending it to a PDF generator. If I send the normal jpg, it works fine, however if I crop the image,…
mickyjtwin
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Is it possible to make colors invisible in the code?

For a game that I am currently making, I have a black background with many white dots, which are being used to represent stars. I have no need for the black color however, and I only wish for the stars to show. My question is this: Is it possible to…
Fitzy
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Procedurally constructing a building from an image

I have a large data set of images. These images contain buildings. I am looking for an intelligent way to extract data from these images. Input Collection of images of buildings with rough coordinates Method The program needs to be able to…
Nick
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Is it possible to show bitmap in a parallelogram shape?

Normally, when you draw a bitmap to the canvas, it is rectangular. Is it possible to make it appear as a parallelogram instead?
Sandeep P
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Agile Uploader (resizes image before upload on the server) - no image in POST data at all?

I want to use Agile Uploader to resize images before upload on my server. But when I try to upload image on server it does nothing... I mean that there is no image in POST data. I've checked POST and there is no items at all. What am I doing…
Vitalii Ponomar
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Imagemagick: How to improve the brightness/contrast of an image with a narrow histogram?

I have a dark image which histogram lies in a tight group. In image editor I can convert image int HSL colorspace, separate L channels and make histogram adjustment. Is this the right way? Which next steps are necessary to do? Is there a…
Ivan Z
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PHP 8.1 Image Manipulation Library and how to do what I want

my current project involves getting all uploaded images to the same size in the end. Furthermore I would like to hear about your approaches on how to do the image manipulation. What I want to do: A user uploads an image with the size of…
DaNeubi
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How to apply a mask over a png image excluding the transparent Part in flutter

I want a greenish tint over the non transparent part of the image, a tried searching for an image manipulation library so that i can manipulate the image directly but couldn't find
Alquama Salim
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How to get interpolation points after a transformation

I have a program that does scaling and rotation on images, the algorithm works like this: (pseudocode) for (x, y) in dest ox, oy = transform(x, y) dest[x,y] = src[ox, oy] I decided to implement bilinear interpolation to get better results,…
Andre Augusto
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Need help regarding Image Processing App

I am developing one image processing app for iPad. In which I am using different sliders for applying different effect on some image. My problem is how can I save the state of any slider? Suppose I changed Hue slider and then Brightness slider and…
Muzammil
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Dynamically change a picture in asp.net

img src="Images/MainMaster/TruckImg.gif" id="imgCompanyLogo" alt="Company Logo" /> I have an image that i would like to change for each company that logs in to the site. How can i dynamically change that picture to an image stored in my database? …
Lucas
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How can I achieve a photoshop "bevel / emboss" like depth effect using Python?

I want to place an image on top of a background-image and apply a "bevel/emboss" effect on the image using Python. I made an attempt using the PIL library but suggestions for other libraries are welcome too. This is what it should look like: I have…
eddex
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