Questions tagged [blur]

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My blur function blurs every image, but fails every check50 check - please help!

I'd really appreciate any help that can be offered here. My code seems to output a blurred image perfectly, but fails every check50 check and I can't work out why... void blur(int height, int width, ...
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pset4 - filter - less - blur doesn't work

// Blur image void blur(int height, int width, RGBTRIPLE image[height][width]) { //Temp array RGBTRIPLE temp[height][width]; for (int i = 0; i < height; i++) { for (int j = ...
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Pset4_ Blur: (more comfortable)Problem, I think there is a small bug, but I can't find it

I was working on my code(sorry for it being so long), then I kept getting the same error and I don't understand why :) blur correctly filters middle pixel :) blur correctly filters pixel on edge :) ...
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I was trying to blur pixels that are not at the edge or the corner of the picture when I got a whole string of errors. Can someone help?

#include "helpers.h" #include <math.h> // Blur image int x; int y; int red = 0; int green = 0; int blue = 0; struct colours { int red; int green; int blue; }; struct ...
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I keep getting the error: linker command failed with exit code 1 (use -v to see invocation) when I'm compiling my code for filter: blur in ide

I seem to get this error over and over again when i compile my code for filter: blur by typing "make helpers". I don't know if it's because of my code. This error did not appear when I ...
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1answer
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Pset 4 filter blur function - only works with corner pixel

requesting help for my blur function. For each pixel, i have split it into 3 for loops. One calculating the row above, same row, and row below. In each loop , if the row is smaller than 0 or equal to ...
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1answer
25 views

How to conserve original values in blur function? (pset 4)

Here's my code inside the blur function (in pset 4, Filter-Less): int redSum; int greenSum; int blueSum; int n; for (int i = 0; i < height; i++) { for (int j = 0; j < width; j++) { ...
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1answer
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pset4/filter: What is being instantiated with RGBTRIPLE(*image)[width]

I'm struggling to get my head around what is being instantiated here with (*image) (and what to do with it) in this line: RGBTRIPLE(*image)[width] = calloc(height, width * sizeof(RGBTRIPLE)); I ...
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1answer
35 views

Problem Set 4 Blur — incorrect output

I am currently working at the blur filter. While the other task were pretty easy, this one ist very much difficult. I have spend hours looking for the mistake - but without success, I tried to do it ...
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Need help solving blur with c

Code: void blur(int height, int width, RGBTRIPLE image[height][width]) { //temporary image to swap RGBTRIPLE temp_img[height][width]; for (int g = 0; g < height; g++) { for (int h = 0; h < ...
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1answer
35 views

Pset 4 Filter(less) Blur

I'm having an issue with the counter variable of my code. I wrote a printf to see if it returns 4, 6, or 9. Which is what it should do, if my IF conditions are correct. Unfortunately it does not ...
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1answer
19 views

I don't understand the error message I'm getting

I don't understand the error message, and i've been trying to modify the code to fix the error but it still appears. // Blur image void blur(int height, int width, RGBTRIPLE image[height][width]) { ...
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Problem with filter (pset 4): Blur and edge

All the filters on the filter program work well, but check50 is giving me a few errors, which I think, is due to rounding issues. But, I have checked and re-checked the code for those errors, and ...
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1answer
30 views

PSET4 Filter Blur by 4 nested for loops

I am trying to implement my idea on Blur function. My main assumption is to get this done using nested 4 for loops as follow: void blur(int height, int width, RGBTRIPLE image[height][width]) { ...
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2answers
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Blur only working with middle pixel

I've been stuck in this problem for a while, and the code only works when its inputted a middle pixel. Does anyone have a clue? I've searched everywhere for this particular issue, but I have only ...
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1answer
30 views

pset4 filter - only blurs the corners correctly

i can`t get the picture blurred at all (it comes out a complete mash up of colours blended together ...) ...i' ve been trying to figure this out for months now :(( HELP! void blur(int height, int ...
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25 views

My blur function doesn't pass check50

so I modified the code from last time, and it seems that instead of making copies of the image and calculating on them, takes the first if statement and makes it the new image so all the other values ...
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24 views

Pset4 - filter Blur

I wrote following code for blur filter . But I can't get the positive result . I want to know what the mistake is . void blur(int height, int width, RGBTRIPLE image[height][width]) { ...
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1answer
54 views

CS50 Pset4 Blur

Greatings fellow Humans So I am about at my wit's end with this one. I have set it all out and have the maths (I beleive) correct on the averages. BUT... check 50 says that some of the averages are ...
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1answer
53 views

My helpers doesn't pass check50

my helpers doesn't pass check50 and I don't know why. This is the code: #include "helpers.h" #include <math.h> // Convert image to grayscale void grayscale(int height, int width, ...
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1answer
41 views

Pset4 filter problem: blur problem Runtime Error

I'm working on a solution to Pset4 blur and have hit a roadblock. My aim is to create average RGB values from a 3x3 grid surrounding and including current pixel and change pixel in original image to ...
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1answer
25 views

Pset4 Blur filter, loop for searching surrounding pixels

I'm trying to write the part of the code where the surrounding pixels around the main pixel are searched in order to make the average and later replace the main value for the average value. I am ...
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1answer
54 views

pset4 - filter program,can't figure out what exactly is the problem with blur!

Can't figure out what the problem with this code is. It seems to be working correctly for corners, but for nothing else. Please help! void blur(int height, int width, RGBTRIPLE image[height][width]) { ...
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Trouble with Blurring my Image Pset4… Running out of Bounds

I am trying to blur my image but I am running into trouble. First of all, the issue is that I run out of bounds - because I did not account for edges and corners here. Is there a simple fix - like ...
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1answer
44 views

cs50 pset4 blur function index out of bounds issue

I am working on the cs50 pset4 blur function, but I seem to be getting runtime error index out of bounds for the top and bottom pixels. Here is the code: // Blur image void blur(int height, int width, ...
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1answer
43 views

Pset 4 Blur Filter Program Seems to Compile but Doesn't Output Anything and Check50 Reads Errors

I am having trouble with the blur function. I am not given any error messages when I run the program, and it creates an output image as if the blurring is working. However, when I open the output ...
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1answer
63 views

pset4 filter/blur code problem

I have written code for the blur filter in problem set 4. The code compiles and runs fine and seems to blur the image but when I run check50 it says that the RGB values aren't correct. I have looked ...
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1answer
42 views

Pset4 Filter Less Blur Runtime Error

Below is my Blur function, which does actually work, yet still returns 9 runtime errors all relating to the right hand side of the image (or the width-value edge). I added a couple of printfs to check ...
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1answer
47 views

CS50 PSET4 (Less) Blur Failed 3x3 & 4x4

This code won't win any style contests, however comma all Check50 test pass except the 3x3 and 4x4. I made a copy of the image, blurred original values, and copied new values to the original image at ...
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43 views

Pset4 Filter: Blur Issue

So this is my first time using Stack Exchange, I have been relying on reddit so far for cs50 however I am stuck on blur. Someone on reddit told me I have to "create a temporary container that is ...
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1answer
58 views

Help on blur function. Correct logic but wont work

So after I passed pset3, I thought things would go easier since my friend said that filter wasn't as complicated as Tideman. Now, I’m doing the blur filter part and stuck on its computation especially ...
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73 views

FILTER WORKS FINE, BUT BLUR FAILS 3x3 and 4x4

The code works fine, but it fails blur filters a 3x3 and 4x4 image. I would like a help on why it correctly blur a middle pixel, but fails those two. Apparently, the wrong pixels are either on edge (...
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1answer
257 views

pset4 filter blur problem

the images is blurry but the check gives errors (it only blurs correctly the edges and corners apparently ...): :( blur correctly filters middle pixel expected "127 140 149\n", not "...
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1answer
40 views

pset4 filter: blur check50 shows same values, but is returning an error

The blur image seems to be working and according to the error I am seeing, it looks like it is getting the right values, so I thought it might be a rounding error, but I have tried every combination ...
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26 views

How do I fix my code for PSET 4 blur?

What I tried to do was go to each pixel and see if any neighboring ones existed. If they did, I saved the neighboring pixel's colors. Then I ran a loop to add up all the values in that specific color ...
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1answer
64 views

Pset 4 filter - blur almost works but has a few errors and I just can't figure out why

I've tried changing everything I can think of, but I can't figure out why this isn't working. #include "helpers.h" #include <math.h> int cap (int x); RGBTRIPLE rowend (RGBTRIPLE x, ...
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70 views

Getting UndefinedBehaviorSanitizer on pset4 filter blur (less comfortable)

I've tried doing this problem a few ways (without success). This time, I wrote the following code: #include "helpers.h" #include <math.h> int cap (int x); RGBTRIPLE corner (RGBTRIPLE ...
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1answer
20 views

i don't know what is wrong when i run the program the output is all zeros

void blur(int height, int width, RGBTRIPLE image[height][width]) { double red_sum ; double green_sum ; double blue_sum ; double counter; RGBTRIPLE new_image[height][width]; ...
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1answer
79 views

pset4 filter - blur function only filters image corners

This is my second attempt at this problem, and a full rewrite; I tried once before to be as eloquent as I could, and it was just totally wrong and bizarre. So I just tried to make this one as readable ...
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1answer
54 views

PSET 4 BLUR and 2 of REFLECT

All of reflect works except reflected a 1 x 2 and a 4 x 4 (3x3 works fine) None of blur works except for when a point is in the corner, which makes little sense. I've sluthed around other answers and ...
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Why does the code output incorrect amounts?

The code is here: https://pastebin.com/gKnVmPFf I've checked that it's not because of neighboring cells, because I am translating them onto a different array. I can't seem to figure out want is wrong. ...
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1answer
97 views

blur pset4 help please, my code compiles but it does not pass any of the check50 at all

Please help with what i did wrong, i cannot seem to find where my logic was wrong and been staring at it for weeks. I've tried to change my approach a few times but does not seem closer at all and ...
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29 views

CS50 filter less Blur problem

I've wrote the code for filter Blur that seems to me have to work. But i don't receive right numbers. Please help me :))) void blur(int height, int width, RGBTRIPLE image[height][width]) { for (int i ...
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13 views

The image updates, yet incorrectly

Here is the link to the full code: https://pastebin.com/kFgWhfTR . The image is calculating incorrectly. I have no idea why. I know that it is not caused by one pixel updating the others.
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32 views

PSET4:Blur filter doesn't function

I have this code: // Blur image void blur(int height, int width, RGBTRIPLE image[height][width]) { RGBTRIPLE tempImage[height][width]; int sumR = 0; int sumG = 0; int sumB = 0; ...
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1answer
132 views

Help with Blur filter! The output image is not blurred, but is returned as a darker image of the input

I have been stuck on this problem for days and have tried so many ways to write this code, but I continuously get errors. Nothing works. The output file is just returned as a darker image of the input ...
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1answer
101 views

pset4 filters: thinking behind blur

Need some help with blur. I think i'm getting it entirely wrong but i can't seem to understand why. None of the blur assessment are correct at all. Wonder if anyone can give me any tips on getting the ...
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39 views

PSET4 Blur Filter, blurs images correctly but check50 fails all blur checks

Not sure what I am doing wrong, I tried casting double to the blurhelper function and check50 still says it is wrong. void blur(int height, int width, RGBTRIPLE image[height][width]) { RGBTRIPLE(*...
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1answer
40 views

What is wrong with my filter blur?

Been stuck on the blurring part for ages... I've ran out of ideas and motivation to debug at this point after spending an eternity cutting down my spaghetti codes to pappardelle. Any help/hint/...
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1answer
185 views

pset4 problem with blur, can't find what's wrong

I can't seen to find what is wrong with blur in my code. My code seems fine and it compiles too but the image doesn't get as blurred as it should. I've surfed through almost all the blur related ...