Questions tagged [blur]

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PSET4 Blur not passing Check50

My code seems to work (when visually inspecting output files), but Check50 does not pass it. I'm struggling to understand what is causing this issue despite having repeatedly read over the code and ...
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2answers
35 views

Cleaning up PSET4 Blur

I have successfully finished the blur effect on PSET4. Here is a small smattering of the code if(i - 1 >= 0 && j - 1 >= 0) { red += OgImage[i-1][j-1]....
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66 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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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
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Check50 shows errors on Blur Function, Filter even though images are blurred

My blur function seems to be working when I input the sample images and open the output file but check50 shows 4/5 errors :( blur correctly filters middle pixel expected "127 140 149\n", not ...
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1answer
32 views

Segmentation fault in blur filter

This is my code for the blur filter in the pset 4. First I used the average for the corner pixels, then I used a loop for the average of the first and last row and columns and then a nested loop for ...
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1answer
161 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
35 views

Pset4 Im having issues with the blur filter

Im extremely close to solve this problem, this is the result of check50 :) helpers.c exists :) filter compiles :) grayscale correctly filters single pixel with whole number average :) grayscale ...
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1answer
45 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
45 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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2answers
528 views

pset4 blur filter

I've been working for like a week on cs50/pset/filter/blur question, but this doesn't seem to be working. My code is like this, and the resulting "blur filtered" image is not any close to what is ...
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1answer
17 views

Blur - I'm so close, but yet not 100%

Apologises for the long post: I wanted to be as explicit in my logic as possible The code I've written uses the following logic to box blur: Use nested for loop to access each pixel in image Check ...
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1answer
87 views

pset4 filter blur

I have written the following code for blur . // Blur image void blur(int height, int width, RGBTRIPLE image[height][width]) { for ( int h=0 ; h<height ; h++) { for ( int w=0 ; ...
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1answer
107 views

pset4: filter blur minimize code

instead of all if-else statements, there is another way for all conditions to minimize my code. void blur(int height, int width, RGBTRIPLE image[height][width]) { for (int i = 0; i < ...
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1answer
266 views

CS50 PSET4 FILTER BLUR

Got stuck in Blur for more than a week and can´t find out what is wrong. I´ve tried many differents ways, but only corner values matches. Can anyone please give me a help about this. // Blur image ...
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1answer
28 views

Pset4 filter blur corner

I finished the other filters and just the blur filter is giving errors. The errors are the following: :) blur correctly filters pixel on edge :( blur correctly filters pixel in corner expected &...
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1answer
60 views

Getting partial output in Blur (pset4 filter) , trying to debug edge and middle pixel

My program when run through check50 says the corner pixels work but nothing else seems to work. I have been stuck on this problem for days and after not getting any considerable reply on the cs50 ...
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2answers
38 views

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
33 views

pset4 Blur calculation does not work properly

for some reason I can't get my calculation for the blur value running. The pictures are really odd and contain crazy colors. Any ideas to why this could be the case? I compared it already to working ...
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1answer
180 views

Why does it say that my index it -1?

I am working on blur in filter and it says my index is our if bound -1 // Create count starts and end count int sh = -1; int eh = 1; int sw = -1; int ew = 1; ...
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1answer
61 views

pset4 Filter Issues

So for some reason neither sepia or blur is returning a picture that has been altered at all. I think this has to do with my storing values in a new RGBTRIPLE called newimage and then after all fo ...
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1answer
190 views

PSET 4 Filter (less) - Simplification of code for blur

My programme works, it compiles well and it passes the check50 checks. However, I don't like how it looks - I feel it's very cumbersome, too full of logical conditions. I was wondering how I might ...
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1answer
51 views

PSET 4 Filter / Blur : I couldn't pass a struct as an function argument what is the reasson?

in order to blur the pixels I created 3 functions. BLUR -Create a new image so old date won't corrupt - iterate over the new image -blur_color - To taking the averages of the color values -...
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1answer
16 views

PSET4 Filter less BLUR

I want to check if the array exists for the edges so I've been trying to check if the block is NULL. if (image[i-1][j-1] != NULL); { redAverage+=image[i-1][j-1].rgbtRed; ...
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1answer
157 views

PSET4 stuck on blur (filter), image doesn't change

I am currently on the blur part of the filter problem. My code is the following: void blur(int height, int width, RGBTRIPLE image[height][width]) { //Create copy for input RGBTRIPLE ...
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1answer
57 views

Filter Blur Image output is wrong

I'm not sure exactly what is wrong with my code. I don't get any runtime errors and my code compiles, but the image doesn't change at all compared with the original, and check 50 tells me I am out - ...
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1answer
34 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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1answer
17 views

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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1answer
124 views

Unusual errors in Blur filter

I am working on the Blur filter in pset4 and I have received some very unusual errors when trying to compile my program. The following is my code for the blur filter. As part of this, I have decided ...
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1answer
65 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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1answer
55 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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1answer
29 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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26 views

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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1answer
32 views

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
17 views

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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0answers
9 views

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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0answers
11 views

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
37 views

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
39 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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1answer
106 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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1answer
36 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
23 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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42 views

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
51 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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26 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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0answers
26 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
58 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
61 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
28 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
45 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 ...