Image processing
$begingroup$
I need to remake this function using the lockbit method.
public void xPix(Bitmap bmp, int n, Color cx, Color nx)
{
try
{
for (int y = 0; y < bmp.Height; y++)
{
for (int x = 0; x < bmp.Width; x += (n * 2))
{
cx = bmp.GetPixel(x, y);
if (x + n <= bmp.Width - 1) nx = bmp.GetPixel(x + n, y);
bmp.SetPixel(x, y, nx);
if (x + n <= bmp.Width - 1) bmp.SetPixel(x + n, y, cx);
}
}
}
catch { }
}
c# performance .net
New contributor
Ayman Benyahia is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
I need to remake this function using the lockbit method.
public void xPix(Bitmap bmp, int n, Color cx, Color nx)
{
try
{
for (int y = 0; y < bmp.Height; y++)
{
for (int x = 0; x < bmp.Width; x += (n * 2))
{
cx = bmp.GetPixel(x, y);
if (x + n <= bmp.Width - 1) nx = bmp.GetPixel(x + n, y);
bmp.SetPixel(x, y, nx);
if (x + n <= bmp.Width - 1) bmp.SetPixel(x + n, y, cx);
}
}
}
catch { }
}
c# performance .net
New contributor
Ayman Benyahia is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
$begingroup$
You suggest you need to remake this function using the "lockbit" method. I've never heard of that method. Perhaps you should explain what your code does, and why you think it needs to be faster, and where it is spending time, currently?
$endgroup$
– Austin Hastings
54 mins ago
add a comment |
$begingroup$
I need to remake this function using the lockbit method.
public void xPix(Bitmap bmp, int n, Color cx, Color nx)
{
try
{
for (int y = 0; y < bmp.Height; y++)
{
for (int x = 0; x < bmp.Width; x += (n * 2))
{
cx = bmp.GetPixel(x, y);
if (x + n <= bmp.Width - 1) nx = bmp.GetPixel(x + n, y);
bmp.SetPixel(x, y, nx);
if (x + n <= bmp.Width - 1) bmp.SetPixel(x + n, y, cx);
}
}
}
catch { }
}
c# performance .net
New contributor
Ayman Benyahia is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
I need to remake this function using the lockbit method.
public void xPix(Bitmap bmp, int n, Color cx, Color nx)
{
try
{
for (int y = 0; y < bmp.Height; y++)
{
for (int x = 0; x < bmp.Width; x += (n * 2))
{
cx = bmp.GetPixel(x, y);
if (x + n <= bmp.Width - 1) nx = bmp.GetPixel(x + n, y);
bmp.SetPixel(x, y, nx);
if (x + n <= bmp.Width - 1) bmp.SetPixel(x + n, y, cx);
}
}
}
catch { }
}
c# performance .net
c# performance .net
New contributor
Ayman Benyahia is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Ayman Benyahia is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 38 mins ago
Jamal♦
30.3k11116227
30.3k11116227
New contributor
Ayman Benyahia is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 1 hour ago
Ayman BenyahiaAyman Benyahia
11
11
New contributor
Ayman Benyahia is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Ayman Benyahia is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Ayman Benyahia is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$begingroup$
You suggest you need to remake this function using the "lockbit" method. I've never heard of that method. Perhaps you should explain what your code does, and why you think it needs to be faster, and where it is spending time, currently?
$endgroup$
– Austin Hastings
54 mins ago
add a comment |
$begingroup$
You suggest you need to remake this function using the "lockbit" method. I've never heard of that method. Perhaps you should explain what your code does, and why you think it needs to be faster, and where it is spending time, currently?
$endgroup$
– Austin Hastings
54 mins ago
$begingroup$
You suggest you need to remake this function using the "lockbit" method. I've never heard of that method. Perhaps you should explain what your code does, and why you think it needs to be faster, and where it is spending time, currently?
$endgroup$
– Austin Hastings
54 mins ago
$begingroup$
You suggest you need to remake this function using the "lockbit" method. I've never heard of that method. Perhaps you should explain what your code does, and why you think it needs to be faster, and where it is spending time, currently?
$endgroup$
– Austin Hastings
54 mins ago
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["\$", "\$"]]);
});
});
}, "mathjax-editing");
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "196"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Ayman Benyahia is a new contributor. Be nice, and check out our Code of Conduct.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fcodereview.stackexchange.com%2fquestions%2f212352%2fimage-processing%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Ayman Benyahia is a new contributor. Be nice, and check out our Code of Conduct.
Ayman Benyahia is a new contributor. Be nice, and check out our Code of Conduct.
Ayman Benyahia is a new contributor. Be nice, and check out our Code of Conduct.
Ayman Benyahia is a new contributor. Be nice, and check out our Code of Conduct.
Thanks for contributing an answer to Code Review Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fcodereview.stackexchange.com%2fquestions%2f212352%2fimage-processing%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
$begingroup$
You suggest you need to remake this function using the "lockbit" method. I've never heard of that method. Perhaps you should explain what your code does, and why you think it needs to be faster, and where it is spending time, currently?
$endgroup$
– Austin Hastings
54 mins ago