# KansuImager — Self-made image processor

> User-created image processing filters with face detection and GPU support. (iPhone/iPad app by NOBORU IMAI.)

- Source: https://appshunter.io/ios/app/kansuimager/id1038267740 (this page in markdown: same URL + `.md`)
- Developer: [NOBORU IMAI](https://appshunter.io/developer/896071356)
- Category: Photo & Video, Education
- Price: $2.99
- Rating: 3.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.3 · 5 MB
- Languages: English, Japanese
- Released: 2015-09-18
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/kansuimager/id1038267740/reviews.md

## What is KansuImager?

KansuImager is an app that the user himself creates image processing filters.
Not only color conversion but also deformation filter can be created.
And face detection function is equipped too.

Because the image processing can be easily created without knowledge about image format or programing, this app is the best choice for studying or prototyping of image process.

This is also good news for the people who wants to create original photo effect or digital art.

The conversion filter can be created by describing conversion functions for each pixel with KansuImager language.
For example, a mirroring filter can be realized with only one line as following.

IF(LT(x,W/2),x,W-x)

In the conversion function, following functions can be referred.

Math Function：sin, cos, tan, exp, sqrt, log, etc.
Logical Function：IF, NOT, EQ, LT, GT, etc.
Iterative Operation：SIGMA, PI (Σ,Π opration)
Pixel Value：R, G, B, M (red, green, blue, monochrome)

As the other functions, built-in filters - Gaussian filter, moving average, and edge detection are available.

You can design linear filters easily. This function is useful for learning or study of image processing technology.

Functions drawing geometric shape like line, circle or rectangle, are implemented.

Moreover, face detection can be carried out. You can create face deformation filter or mosaic processing with this.

From Ver.2.0, the image conversion with GPU is realized that user describes OpenGL shader language(a type of dialect).

Please refer built-in manual for more detail of filter creation method. Tap (?) icon to show it.
As the sample, mirroring, subtractive color processing, unsharp filter and face detection are already registered in the app. These explanations are also described in the manual.

NOTE) In using KansuImage language because user defined functions are parsed in image conversion, the processing speed is slower than the other commercial photo effect app.

## Key features

- Create custom image processing filters
- Color conversion and deformation effects
- Face detection functionality
- GPU accelerated image conversion
- Built-in filters (Gaussian, edge detection)
- Geometric shape drawing functions

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/kansuimager/id1038267740/reviews.md

### 3/5 — Holy Moly Guacamole!

*2022-01-11*

First of all, I’m not upset that I bought this app, simply for the fact that it is a unique, highly customizable, and potentially interesting way to trial and error my way through some code learning. 

HOWEVER... This is definitely not for beginners! It quickly became apparent that I know absolutely nothing about what this app does when I opened the manual and realized I could probably read more if it were written in Russian or Klingon. My first clue was the Mathematical equation section (for example, the word “Trigonometry,” is in one of the section titles, along with formulas/symbols I haven’t seen since college - if that doesn’t scare you, you’ll probably do fine). There is also a section on Logic as it relates to coding (again, I haven’t seen any of this since college!).  I stopped looking after that...

Basically, if I want to get anything out of this app, I will have to send a LOT of time with it. And it would be intense, not a light read over breakfast. Realistically, chances are slim but not zero that I will devote the time needed to unlock this app’s potential. But I have a feeling the potential is very much there. 
***

TLDR: 
If you’re looking for an easy, one-click, sleek interface, friendly UI kind of filter app, keep looking. This is not the app for you. 

If you enjoy a challenge, are logically/mathematically inclined, and have a solid background or at least basic knowledge of coding, then this app might be a hidden gem (it’s hard to say, since I was immediately and completely over my head upon opening the thing). 
A mathematical IQ of 140 or higher might not be required but would certainly help as well, lol. 🤓

I wish this had a little more internal structure built up so that someone that truly has zero knowledge of coding, etc., could enjoy the customization features - without needing to go back to college for a second degree! The dev has a unique idea here (and no reviews yet), so I wanted to throw this one out there for anyone interested in the customizable features offered within this particular app.

## Frequently asked questions about KansuImager

### What is KansuImager?

KansuImager is an application that allows users to create their own image processing filters, including color adjustments and deformations, without needing programming knowledge. It also features face detection and GPU acceleration for advanced effects.

### How do I create filters in KansuImager?

Filters are created by describing conversion functions for each pixel using the KansuImager language. You can refer to various math, logical, and pixel value functions, and even use iterative operations.

### Does KansuImager have built-in filters?

Yes, KansuImager includes several built-in filters such as Gaussian filter, moving average, and edge detection. It also comes with sample filters like mirroring and subtractive color processing.

### Can KansuImager detect faces?

Yes, KansuImager is equipped with a face detection function. This allows you to create face deformation filters or mosaic processing based on detected faces.

### Is KansuImager suitable for learning image processing?

Absolutely. The app is designed to make image processing easy to create without programming knowledge, making it an excellent choice for studying or prototyping image processes. You can easily design linear filters for learning.

### What devices does KansuImager support?

KansuImager is available for iPhone, iPad, and iPod touch devices. It requires iOS 9.0 or later.

### How much does KansuImager cost?

KansuImager is a paid application, priced at $2.99. There are no in-app purchases or subscriptions.

### How often is KansuImager updated?

The app was last updated on December 13, 2021, with version 2.1. This indicates it receives periodic updates to improve functionality and add features.

## Version history (last 3 releases)

### 2.1 — 2021-12-13

App maintenance

### 2.0 — 2018-10-21

Image conversion with OpenGL shader language.

### 1.0 — 2015-09-18

No release notes.

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## More apps by NOBORU IMAI

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All apps by NOBORU IMAI: https://appshunter.io/developer/896071356

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*