Android Consultant - high performance improments

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We are looking for Android developer to help us optimize following code:

// this code transforms bitmap for printing in Black and White for Receipt Printer using ESC/POS commands.

for (int i = 0; i < height; i++) {

for (int x = 0; x < tmp; x++)

data[x] = 0;

for (int x = startx; x < width; x++) {

final int pixel = [url removed, login to view](x - startx, i);

if ([url removed, login to view](pixel) == 0 || [url removed, login to view](pixel) == 0

|| [url removed, login to view](pixel) == 0) {

data[x / 8] += 128 >> (x % 8); // (byte) (128 >> (y % 8));

}

}

// write(data);

}

This code is used to transform Bitmap to BW image for printing. On larger images like 400x1000px this has too many iterations and takes 2-5 seconds to compute. We need faster much way. Only bids with genuine response to this particular problem will be accepted.

スキル: Android

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プロジェクトID: #11798404

この仕事に、20人のフリーランサーが、平均€17/時間で入札しています。

monoLancer

Hello, How are you? I had read your job description and many interest. I check all tech problem via google,and known that i can do this project well. This project match with my skill and experience, i have fu もっと

€20 EUR / 時間
(39件のレビュー)
7.5
qitsol

We have 240+ positive reviews on freelancer site. Quality IT Solutions are top rated team here, see our certifications and client feedback, client relationship (100% recommendation from clients). We are top CRM もっと

€20 EUR / 時間
(41件のレビュー)
7.8
TechnoAppMaster

Hi, I have 5+ years of experience in app development. I have successfully launched 40+ apps on Google Play Store. I have working experience on both Eclipse and android studio. I am especially master in Java. In term もっと

€20 EUR / 時間
(92件のレビュー)
6.5
bondwp322

Hi, Dear Employer! How are you? I read your description carefully and understand your requirements fully. I am really interested in your project. I am 100% sure i can do this. Sure, I will support free bug fixin もっと

€20 EUR / 時間
(26件のレビュー)
6.3
WienFuJong

Hi Dear Employer, how are you? I Will Provide You Great And Perfect App To Lead You To The Success In Your Business As Well As Full Services. I saw your project description carefully and thought that your project was もっと

€20 EUR / 時間
(15件のレビュー)
5.8
€22 EUR / 時間
(9件のレビュー)
5.0
€12 EUR / 時間
(67件のレビュー)
5.1
phanthan

Hi. I will help you. Using recursive function, I can optimize your code. Please send me message to discuss more. Thank you.

€25 EUR / 時間
(4件のレビュー)
5.0
zhangbaksan

hello,how are you. i read your bid carefully. i am android expert and have full experience for 8 years. android is my top skill and passision. you can reference these urls showing demos i developed. https://www.dro もっと

€20 EUR / 時間
(8件のレビュー)
4.0
narendragautam

Hi, I am interested. Thanks Narendra

€18 EUR / 時間
(5件のレビュー)
4.0
eagleblackdesign

Hello! We are a creative web/mobile development team with experience in creating custom apps with complex interfaces, web API integrated dashboards and 2d games. We can send you an example video with quick run through もっと

€20 EUR / 時間
(1レビュー)
3.0
vuongthanhlam001

Try this one: public Bitmap toGrayscale(Bitmap bmpOriginal) { int width, height; height = bmpOriginal.getHeight(); width = bmpOriginal.getWidth(); Bitmap bmpGrayscale = Bitmap.create もっと

€13 EUR / 時間
(5件のレビュー)
2.6
€13 EUR / 時間
(1レビュー)
2.8
jcganon

Hello. I'm a android developer that have 8 years of experience of android app. I have ever done the app for printing. There are no problem in implementing your requests. Please inform me if you want to hire me. I もっと

€12 EUR / 時間
(1レビュー)
2.0
€16 EUR / 時間
(0件のレビュー)
0.0
gravichandra

with over 10years of industry experience and solid foundation in Datastructures and algorithms, i can optimize your problem

€12 EUR / 時間
(0件のレビュー)
0.0
nvbpatel789

hello...there...would like to work with you and I have also build that type apps like as a silkysocks..same as prisma app ..currently one as a selfie app if you would like to work with me then ping me... and my contact もっと

€13 EUR / 時間
(0件のレビュー)
0.0
jefioliveira

I'm android developer and i developed solution Using computer vision opencv for android ican help you with this.

€16 EUR / 時間
(0件のレビュー)
0.0
meFreelancer247

I am 5+ years experienced in Mobile App (Android/iOS) developing and publishing applications in the respective stores and and Web Development (Ruby on Rails, WordPress, AngularJS, PHP, Javascript etc.). I have もっと

€12 EUR / 時間
(1レビュー)
0.1
dverdugo

Hello I hope you are fine and based on your request, quickly I developed an app where I show the transformation a normal image to an image of color black and white. I use the function "ColorMatrix" and "ColorMatrixColo もっと

€13 EUR / 時間
(0件のレビュー)
0.0