Questions tagged [blur]
The blur tag has no usage guidance.
108
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14
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Incorrect blur for filtermore
for this problem, I have opted to use a strategy where I create a 1 pixel border in a copy image with RBG values = 0, to avoid running into segmentation errors when trying to access a pixel. I also ...
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2
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35
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pset4 blur; artifacts on a white parts of an image
I believe I've done this part of filter-more task pretty well, but, unfortunately, an output image has some artifacts - blur works badly with white parts of an image.
void blur(int height, int width, ...
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0
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33
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PSET4 filter-less: black screen when running blur function
I am currently working on the blur function, in filter-less. I am greeted woth a black screen when I run the function, and I'm unsure what part of my code is causing this to happen. Here is my code as ...
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16
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Can't figure out what is wrong with my blur code
void blur(int height, int width, RGBTRIPLE image[height][width])
{
// DEFINE ONE STRUCT TO ACT AS BUFFER MEANWHILE CALCULATING AVERAGE
RGBTRIPLE buffer[height][width];
// GO THROUGH EACH ...
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0
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0
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19
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PSET 4 filter-more blur returns a weird psychedelic image
So I'm completely stumped.
As far as I know, the logic is correct, as when I use debug50 and follow which conditional each pixel we're looking at right now goes through, it goes through what seems to ...
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1
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89
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pset4 filter-more All functions work when I test it but check50 gives error
I struggled a long time with this problem, and I saw other people had almost the same question and got answers but I didn't get to solve the problem.
All four functions seems to work but when I test ...
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0
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1
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161
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CS50 PSET 4 Filter-less, Blur function not filtering 3x3 and 4x4 images correctly
I have read many similar problems on here about the same issue. I believe my function is correct, although redundant and not very stylish. It should however get the job done. I get the same pixels ...
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1
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51
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PSET4 Blur - Issue understanding what am I doing wrong
I have been stuck on this problem for around 2 weeks, and I have no idea what am I doing wrong...
I would like some hint to what I am doing wrong, in which part of code it might be, etc..
My code ...
0
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1
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174
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[SOLVED]PSET-4 - Filter - Blur - blur correctly filters pixel in corner
I am getting these 3 errors on check50:
blur correctly filters pixel in corner
expected "70 85 95\n", not "69 192 95\n"
blur correctly filters 3x3 image
expected "70 ...
0
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1
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352
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Filter less, Blur, why does my code not blur the edge and 3x3 and 4x4 image?
I am stuck at the blur function in filter less. Your task is to calculate the average RGB value of the surrounding pixel in one row and one column of a bmg image, including the middle pixel. It works ...
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114
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Filter blur errors
I'm working on the filter-less problem in pset4. I've got all of my functions to work properly except for the blur function. I am getting the following errors I believe due to problems with how I'm ...
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87
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Trying to complete Blur, need a little help. I've rewritten several times I've tried pointers and variables inside and outside the function
I changed this a few times, I tried to condense it, but now the NULL check gives me an error message
// Blur image
void blur(int height, int width, RGBTRIPLE image[height][width])
{
RGBTRIPLE copy[...
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0
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1
answer
188
views
Image blurs but check50 fails for filter less. Why?
The image is blurry and everything seems to work fine. But check50 fails. Hence, I am not sure where I made the mistake.
// Blur image
void blur(int height, int width, RGBTRIPLE image[height][width])
{...
- 125
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1
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79
views
Filter (more) blur function fails check50
I've hit a bit of a brick wall writing a blur function for filter (more). This is my second go at refactoring the code, and although it produces a blurred image without any issues (no weird edges, ...
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37
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My Red and Blue values are wrong but all my green values are correct. It's pretty simple what i've done. What am I missing ? Please help
void blur(int height, int width, RGBTRIPLE image[height][width])
{
RGBTRIPLE tmpimage[height][width];
for (int i = 0; i < height ; i++)
{
for (int j = 0; j < width; j++)
...
1
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1
answer
47
views
Pset4 Blur filter (more comfortable) assign new struct to image does not work
I was trying to use the following code to complete the blur function. Everything seems fine but I just couldn't update the RGBTRIPLE variable image directly with another RGBTRIPLE variable I crreated.
...
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1
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103
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Pset4 Filter (Less) - Invalid operands to binary expression (Int and RGBTRIPLE)
Hello. I'm facing a problem trying to compile this code. I got the error msg Invalid operands to binary expression ('int' and 'RGBTRIPLE')
void blur (int height, int width, RGBTRIPLE image[height][...
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1
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141
views
Blur in cs50 problem set 4
My code for the blur filter works fine to edge, corner and middle pixels, but it doesnt work right for a whole 3x3 or 4x4 picture i've been trying everything but nothing seems to fix it.
This is what ...
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1
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1k
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Questions regarding pset4 Blur filter (less comfortable)
After tinkering for a while with why my filter didn't work, I finally succeded with the following code:
// Blur image
void blur(int height, int width, RGBTRIPLE image[height][width])
{
//make copy ...
1
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1
answer
2k
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My CS50 PSET4 Filter (Less) Blur function doesn't pass check50 despite seemingly working fine
I've been working on CS50 PSET4 Filter (Less) and finally got a working blur function (or so I thought!)
// Blur image
void blur(int height, int width, RGBTRIPLE image[height][width])
{
RGBTRIPLE ...
0
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1
answer
76
views
style50 weird result
I have a really really long lines for blur function. when I pass it to style50 it asks me to change code style to this:
for (int j = 1; j < width - 1 ; j++)
{
image[i][j].rgbtRed = ...
0
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1
answer
22
views
PSET4 LESS BLUR function -Ending Edges problem
My code works fine but for the ending edges not. I mean the right & bottom edges values. Here is my code :
void blur(int height, int width, RGBTRIPLE image[height][width])
{
// h = 400 w = ...
0
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0
answers
70
views
My Filter program is not blurring the image correctly. And it is not able to open the input file. It shows it as NULL
Here is my code:
#include"helpers.h"
#include<math.h>
#include<stdio.h>
#include<stdlib.h>
// Convert image to grayscale
void grayscale(int height, int width, RGBTRIPLE ...
1
vote
1
answer
543
views
PSET4 filter less Blur function
I am stuck in Pset4-Filter/less the Blur function in particular. My problem is the image blurred correctly but does not pass check50.
Check50 result :
:( blur correctly filters middle pixel >> ...
0
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1
answer
151
views
pset4 filter blur less got stuck
i have been working on blur and it works just fine as i run it. but when i run check50
i get this :
:( blur correctly filters middle pixel
expected "127 140 149\n", not "145 160 169\n&...
0
votes
1
answer
110
views
pset4 filter. Blur image compiles goed but does'nt pass the check50 lots of error
The code in helpers.c all images compiles exept for the Blur image it compiles without any errors. But doesn't pass the cs50 check? any suggestions only the Blur image section. Thanks
// Blur ...
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46
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Blur PSet4 (Filter) - Compilation errors passing reference to the image[height][width] array in helper function using pointers
I'm having a brainfart wrapping my head around the use of pointers when trying to pass a reference to the image 2D array in a helper function that I created to assist in the blur effect.
Here's blur:
...
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119
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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 ...
1
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2
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100
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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0
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1
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118
views
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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74
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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 ...
1
vote
1
answer
176
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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1
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320
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 &...
0
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1
answer
325
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 ...
0
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1
answer
41
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;
...
0
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1
answer
48
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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1
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1
answer
43
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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1
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92
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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1
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51
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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-1
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1
answer
154
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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1
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61
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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 ...
0
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1
answer
55
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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 < ...
- 31
0
votes
1
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48
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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1
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180
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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0
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48
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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 ...
0
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1
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103
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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])
{
...
1
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2
answers
74
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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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1
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89
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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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82
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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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1
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98
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, ...
- 31